Observability of Quantum Criticality and a Continuous Supersolid in Atomic Gases (2009)
Diehl, S., Baranov, M., Daley, A. J., Zoller, P.
We analyze the Bose-Hubbard model with three-body onsite hardcore constraint, which stabilizes the system for an attractive interparticle interaction and allows, in particular, the formation of a...
Trapping and Manipulation of Isolated Atoms Using Nanoscale Plasmonic Structures (2009)
Chang, D. E., Thompson, J. D., Park, H., Vuletić, V., Zibrov, A. S., Zoller, P., ...
We propose and analyze a scheme to interface individual neutral atoms with nanoscale solid-state systems. The interface is enabled by optically trapping the atom via the strong near-field generated...
A single trapped atom in front of an oscillating mirror (2009)
Glaetzle, A. W., Hammerer, K., Daley, A. J., Blatt, R., Zoller, P.
We investigate the Wigner-Weisskopf decay of a two level atom in front of an oscillating mirror. This work builds on and extends previous theoretical and experimental studies of the effects of a...
Cavity optomechanics using an optically levitated nanosphere (2009)
Chang, D. E., Regal, C. A., Papp, S. B., Wilson, D. J., Ye, J., Painter, O., ...
Recently, remarkable advances have been made in coupling a number of high-Q modes of nano-mechanical systems to high-finesse optical cavities, with the goal of reaching regimes where quantum behavior...
An atomic colour superfluid via three-body loss (2009)
Kantian, A., Dalmonte, M., Diehl, S., Hofstetter, W., Zoller, P., Daley, A. J.
Large three-body losses in a three-component Fermi gas confined in an optical lattice can prevent the occupation of a lattice site by three atoms. This effective constraint not only gives rise to a...
Strong Coupling of a Mechanical Oscillator and a Single Atom (2009)
Hammerer, K., Wallquist, M., Genes, C., Ludwig, M., Marquardt, F., Treutlein, P., ...
We propose and analyze a setup to achieve strong coupling between a single trapped atom and a mechanical oscillator. The interaction between the motion of the atom and the mechanical oscillator is...
A quantum spin transducer based on nano electro-mechancial resonator arrays (2009)
Rabl, P., Kolkowitz, S. J., Koppens, F. H., Harris, J. G. E., Zoller, P., Lukin, M. D.
Implementation of quantum information processing faces the contradicting requirements of combining excellent isolation to avoid decoherence with the ability to control coherent interactions in a...
Quantum Phases of Cold Polar Molecules in 2D Optical Lattices (2009)
Capogrosso-Sansone, B., Trefzger, C., Lewenstein, M., Zoller, P., Pupillo, G.
We discuss the quantum phases of hard-core bosons on a two-dimensional square lattice interacting via repulsive dipole-dipole interactions, as realizable with polar molecules trapped in optical...
Trapping and manipulation of isolated atoms using nanoscale plasmonic structures (2009)
Chang, D. E., Thompson, J. D., Park, H., Vuletic, V., Zibrov, A. S., Zoller, P., ...
We propose and analyze a scheme to interface individual neutral atoms with nanoscale solid-state systems. The interface is enabled by optically trapping the atom via the strong near-field generated...
Two-orbital SU(N) magnetism with ultracold alkaline-earth atoms (2009)
Gorshkov, A. V., Hermele, M., Gurarie, V., Xu, C., Julienne, P. S., Ye, J., ...
Fermionic alkaline-earth atoms have unique properties that make them attractive candidates for the realization of novel atomic clocks and degenerate quantum gases. At the same time, they are...
Stabilization of the p-wave superfluid state in an optical lattice (2009)
Yi, W., Daley, A. J., Diehl, S., Zoller, P., ...
It is hard to stabilize the p-wave superfluid state of cold atomic gas in free space due to inelastic collisional losses. We consider the p-wave Feshbach resonance in an optical lattice, and show...
Strong coupling of a mechanical oscillator and a single atom (2009)
Hammerer, K., Wallquist, M., Genes, C., Ludwig, M., Marquardt, F., Treutlein, P., ...
We propose and analyze a setup to achieve strong coupling between a single trapped atom and a mechanical oscillator. The interaction between the motion of the atom and the mechanical oscillator is...
Mesoscopic phases of dipolar ensembles with polar molecules and Rydberg atoms (2009)
Pupillo, G., Micheli, A., Boninsegni, M., Lesanovsky, I., Zoller, P.
We discuss the realization of mesoscopic phases of dipolar gases relevant to current experiments with cold polar molecules and Rydberg atoms confined to two dimensions. We predict the existence of...
Cavity-assisted squeezing of a mechanical oscillator (2009)
Jaehne, K., Genes, C., Hammerer, K., Wallquist, M., Polzik, E. S., Zoller, P.
We investigate the creation of squeezed states of a vibrating membrane or a movable mirror in an opto-mechanical system. An optical cavity is driven by squeezed light and couples via radiation...
Quantum Simulations of Extended Hubbard Models with Dipolar Crystals (2009)
Ortner, M., Micheli, A., Pupillo, G., Zoller, P.
In this paper we study the realization of lattice models in mixtures of atomic and dipolar molecular quantum gases. We consider a situation where polar molecules form a self-assembled dipolar...
Global operations for protected quantum memories in atomic spin lattices (2009)
Brennen, G. K., Hammerer, K., Jiang, L., Lukin, M. D., Zoller, P.
Quantum information processed in strongly correlated states of matter can provide built in hardware protection against errors. We may encode information in highly non local degrees of freedom, such...
Strong Coupling of a Mechanical Oscillator and a Single Atom (2009)
Hammerer, K., Wallquist, M., Genes, C., Ludwig, M., Marquardt, F., Treutlein, Peter, ...
Mesoscopic Rydberg Gate based on Electromagnetically Induced Transparency (2008)
Müller, M., Lesanovsky, I., Weimer, H., Büchler, H. P., Zoller, P.
We demonstrate theoretically a parallelized C-NOT gate which allows to entangle a mesoscopic ensemble of atoms with a single control atom in a single step, with high fidelity and on a microsecond...
Atomic three-body loss as a dynamical three-body interaction (2008)
Daley, A. J., Taylor, J. M., Diehl, S., Baranov, M., Zoller, P.
We discuss how large three-body loss of atoms in an optical lattice can give rise to effective hard-core three-body interactions. For bosons, in addition to the usual atomic superfluid, a dimer...
Lesanovsky, I., Mueller, M., Zoller, P.
We study two ions confined in a Penning trap. We show that electronically highly excited states exist in which an electron is delocalized among the two ions forming a giant molecule of several...
Three-body Interactions in one Dimension (2008)
Capogrosso-Sansone, B., Wessel, S., Büchler, H. P., Zoller, P., Pupillo, G.
We determine the phase-diagram of a one-dimensional system of hard-core lattice bosons interacting via repulsive three-body interactions by analytic methods and extensive quantum Monte-Carlo...
Condensed Matter Physics with Cold Polar Molecules (2008)
Pupillo, G., Micheli, A., Büchler, H. P., Zoller, P.
In this review chapter we focus on the many-body dynamics of cold polar molecules in the strongly interacting regime. In particular, we discuss a toolbox for engineering many-body Hamiltonians based...
Repulsive shield between polar molecules (2008)
Gorshkov, A. V., Rabl, P., Pupillo, G., Micheli, A., Zoller, P., Lukin, M. D., ...
We propose and analyze a technique that allows to suppress inelastic collisions and simultaneously enhance elastic interactions between cold polar molecules. The main idea is to cancel the leading...
Physical replicas and the Bose-glass in cold atomic gases (2008)
Morrison, S., Kantian, A., Daley, A. J., Katzgraber, H. G., Lewenstein, M., Büchler, H. P., ...
We study cold atomic gases in a disorder potential and analyze the correlations between different systems subjected to the same disorder landscape. Such independent copies with the same disorder...
Establishing EPR-channels between Nanomechanics and Atomic Ensembles (2008)
Hammerer, K., Aspelmeyer, M., Polzik, E. S., Zoller, P.
We suggest to interface nanomechanical systems via an optical quantum bus to atomic ensembles, for which means of high precision state preparation, manipulation and measurement are available. This...
Preparation of Entangled States by Quantum Markov Processes (2008)
Kraus, B., Büchler, H. P., Diehl, S., Kantian, A., Micheli, A., Zoller, P.
We investigate the possibility of using a dissipative process to prepare a quantum system in a desired state. We derive for any multipartite pure state a dissipative process for which this state is...
Quantum States and Phases in Driven Open Quantum Systems with Cold Atoms (2008)
Diehl, S., Micheli, A., Kantian, A., Kraus, B., Büchler, H. P., Zoller, P.
An open quantum system, whose time evolution is governed by a master equation, can be driven into a given pure quantum state by an appropriate design of the system-reservoir coupling. This points out...
State-dependent, addressable subwavelength lattices with cold atoms (2008)
Yi, W., Daley, A. J., Pupillo, G., Zoller, P.
We discuss how adiabatic potentials can be used to create addressable lattices on a subwavelength scale, which can be used as a tool for local operations and readout within a lattice substructure,...
Quantum Computing and Decoherence in Quantum Optical Systems (2007)
J. I. Cirac, T. Pellizzari, J. Poyatos, P. Zoller
We present recent theoretical results in the context of quantum computing and error correction. In particular, a short review of the ion trap quantum computer is given. Moreover, we present a novel...
Synthesis of Entangled States and Quantum Computing (2007)
J. I. Cirac, S. Gardiner, T. Pellizzari, J. Poyatos, P. Zoller
Introduction One of the most intriguing features of Quantum Mechanics is the existence of entangled states. These are superposition states of composite systems, i.e. states which cannot be expressed...
Andreev-like reflections with cold atoms (2007)
Daley, A. J., Zoller, P., Trauzettel, B.
We propose a setup in which Andreev-like reflections predicted for 1D transport systems could be observed time-dependently using cold atoms in a 1D optical lattice. Using time-dependent Density...
Trapped Rydberg Ions: From Spin Chains to Fast Quantum Gates (2007)
Mueller, M., Lesanovsky, I., Zoller, P.
We study the dynamics of Rydberg ions trapped in a linear Paul trap, and discuss the properties of ionic Rydberg states in the presence of the static and time-dependent electric fields constituting...
Cold Atoms and Molecules in Self-Assembled Dipolar Lattices (2007)
Pupillo, G., Griessner, A., Micheli, A., Ortner, M., Zoller, P.
We study the realization of lattice models, where cold atoms and molecules move as extra particles in a dipolar crystal of trapped polar molecules. The crystal is a self-assembled floating mesoscopic...
Atomic lattice excitons: from condensates to crystals (2007)
Kantian, A., Daley, A. J., Torma, P., Zoller, P.
We discuss atomic lattice excitons (ALEs), bound particle-hole pairs formed by fermionic atoms in two bands of an optical lattice. Such a system provides a clean setup to study fundamental properties...
Molecular Dipolar Crystals as High Fidelity Quantum Memory for Hybrid Quantum Computing (2007)
We study collective excitations of rotational and spin states of an ensemble of polar molecules, which are prepared in a dipolar crystalline phase, as a candidate for a high fidelity quantum memory....
Controlled collisions of a single atom and ion guided by movable trapping potentials (2007)
Idziaszek, Z., Calarco, T., Zoller, P.
We consider a system composed of a trapped atom and a trapped ion. The ion charge induces in the atom an electric dipole moment, which attracts it with an r^{-4} dependence at large distances. In the...
Three-body interactions with cold polar molecules (2007)
Büchler, H. P., Micheli, A., Zoller, P.
We show that polar molecules driven by microwave fields give naturally rise to strong three-body interactions, while the two-particle interaction can be independently controlled and even switched...
Micheli, A., Pupillo, G., Büchler, H. P., Zoller, P.
We discuss techniques to engineer effective long-range interactions between polar molecules using external static electric and microwave fields. We consider a setup where molecules are trapped in a...
Griessner, A., Daley, A. J., Clark, S. R., Jaksch, D., Zoller, P.
We analyse a laser assisted sympathetic cooling scheme for atoms within the lowest Bloch band of an optical lattice. This scheme borrows ideas from sub-recoil laser cooling, implementing them in a...
Bloch, D, Chierici, R, Cossutti, F, De Clercq, C, D'Hondt, J, Jeans, D, ...
Bloch, D, Chierici, R, Cossutti, F, D'Hondt, J, Jeans, D, Kjaer, N J, ...
Repulsively bound atom pairs: Overview, Simulations and Links (2006)
Daley, A. J., Kantian, A., Büchler, H. P., Zoller, P., Winkler, K., Thalhammer, G., ...
We review the basic physics of repulsively bound atom pairs in an optical lattice, which were recently observed in the laboratory, including the theory and the experimental implementation. We also...
Precision electroweak measurements on the Z resonance (2006)
Schael, S., Barate, R., Brunelière, R., Buskulic, D., De Bonis, I., Décamp, D., ...
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17...
Büchler, H. P., Demler, E., Lukin, M., Micheli, A., Prokof'ev, N., Pupillo, G., ...
We discuss techniques to tune and shape the long-range part of the interaction potentials in quantum gases of polar molecules by dressing rotational excitations with static and microwave fields. This...
Dark state cooling of atoms by superfluid immersion (2006)
Griessner, A., Daley, A. J., Clark, S. R., Jaksch, D., Zoller, P.
We propose and analyse a scheme to cool atoms in an optical lattice to ultra-low temperatures within a Bloch band, and away from commensurate filling. The protocol is inspired by ideas from dark...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI...
Tewari, Sumanta, Sarma, S. Das, Nayak, Chetan, Zhang, Chuanwei, Zoller, P.
We propose to use the recently predicted two-dimensional `weak-pairing' $p_x + ip_y$ superfluid state of fermionic cold atoms as a platform for topological quantum computation. In the core of a...
Andre, A., DeMille, D., Doyle, J. M., Lukin, M. D., Maxwell, S. E., Rabl, P., ...
The challenge of building a scalable quantum processor requires consolidation of the conflicting requirements of achieving coherent control and preservation of quantum coherence in a large scale...
Repulsively bound atom pairs in an optical lattice (2006)
Winkler, K., Thalhammer, G., Lang, F., Grimm, R., Denschlag, J. Hecker, Daley, A. J., ...
Throughout physics, stable composite objects are usually formed via attractive forces, which allow the constituents to lower their energy by binding together. Repulsive forces separate particles in...
Hybrid Quantum Processors: molecular ensembles as quantum memory for solid state circuits (2006)
Rabl, P., DeMille, D., Doyle, J. M., Lukin, M. D., Schoelkopf, R. J., Zoller, P.
We investigate a hybrid quantum circuit where ensembles of cold polar molecules serve as long-lived quantum memories and optical interfaces for solid state quantum processors. The quantum memory...
A toolbox for lattice spin models with polar molecules (2005)
Micheli, A., Brennen, G. K., Zoller, P.
There is growing interest to investigate states of matter with topological order, which support excitations in the form of anyons, and which underly topological quantum computing. Examples of such...
Fast Rydberg gates without dipole blockade via quantum control (2005)
Cozzini, M., Calarco, T., Recati, A., Zoller, P.
We propose a scheme for controlling interactions between Rydberg-excited neutral atoms in order to perform a fast high-fidelity quantum gate. Unlike dipole-blockade mechanisms already found in the...
Precision Electroweak Measurements on the Z Resonance (2005)
Schael, S, Barate, R, Brunelière, R, Buskulic, Damir, De Bonis, I, Décamp, D, ...
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17...
Precision Electroweak Measurements on the Z Resonance (2005)
Schael, S, Barate, R, Brunelière, R, Buskulic, Damir, De Bonis, I, Décamp, D, ...
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17...
Numerical Analysis of Coherent Many-Body Currents in a Single Atom Transistor (2005)
Daley, A. J., Clark, S. R., Jaksch, D., Zoller, P.
We study the dynamics of many atoms in the recently proposed Single Atom Transistor setup [A. Micheli, A. J. Daley, D. Jaksch, and P. Zoller, Phys. Rev. Lett. 93, 140408 (2004)] using recently...
Quantum feedback cooling of a single trapped ion in front of a mirror (2005)
Steixner, V., Rabl, P., Zoller, P.
We develop a theory of quantum feedback cooling of a single ion trapped in front of a mirror. By monitoring the motional sidebands of the light emitted into the mirror mode we infer the position of...
A Single Atom Mirror for 1D Atomic Lattice Gases (2005)
We propose a scheme utilizing quantum interference to control the transport of atoms in a 1D optical lattice by a single impurity atom. The two internal state of the impurity represent a spin-1/2...
Quantum Physics from A to Z (2005)
Arndt, M., Aspelmeyer, M., Bernstein, H. J., Bertlmann, R., Brukner, C., Dowling, J. P., ...
This is a collection of statements gathered on the occasion of the Quantum Physics of Nature meeting in Vienna.
Quantum logic via optimal control in holographic dipole traps (2005)
Dorner, U., Calarco, T., Zoller, P., Browaeys, A., Grangier, P.
We propose a scheme for quantum logic with neutral atoms stored in an array of holographic dipole traps where the positions of the atoms can be rearranged by using holographic optical tweezers. In...
Atomic quantum simulator for lattice gauge theories and ring exchange models (2005)
Büchler, H. P., Hermele, M., Huber, S. D., Fisher, Matthew P. A., Zoller, P.
We present the design of a ring exchange interaction in cold atomic gases subjected to an optical lattice using well understood tools for manipulating and controlling such gases. The strength of this...
Solid-state circuit for spin entanglement generation and purification (2005)
Taylor, J. M., Dür, W., Zoller, P., Yacoby, A., Marcus, C. M., Lukin, M. D.
We show how realistic charge manipulation and measurement techniques, combined with the exchange interaction, allow for the robust generation and purification of four-particle spin entangled states...
Fault-Tolerant Dissipative Preparation of Atomic Quantum Registers with Fermions (2005)
Griessner, A., Daley, A. J., Jaksch, D., Zoller, P.
We propose a fault tolerant loading scheme to produce an array of fermions in an optical lattice of the high fidelity required for applications in quantum information processing and the modelling of...
Osterloh, K., Baig, M., Santos, L., Zoller, P., Lewenstein, M.
We demonstrate how to create artificial external non-Abelian gauge potentials acting on cold atoms in optical lattices. The method employs $n$ internal states of atoms and laser assisted state...
Precision electroweak measurements on the Z resonance (2005)
Schael, S., Barate, R., Brunelière, R., Buskulic, D., De Bonis, I., Décamp, D., ...
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17...
Precision electroweak measurements on the Z resonance (2005)
Schael, S., Barate, R., Brunelière, R., Buskulic, D., De Bonis, I., Décamp, D., ...
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17...
Scalable Ion Trap Quantum Computing without Moving Ions (2004)
Tian, L., Blatt, R., Zoller, P.
A hybrid quantum computing scheme is studied where the hybrid qubit is made of an ion trap qubit serving as the information storage and a solid-state charge qubit serving as the quantum processor,...
Coherent control of trapped ions using off-resonant lasers (2004)
Garcia-Ripoll, J. J., Zoller, P., Cirac, J. I.
In this paper we develop a unified framework to study the coherent control of trapped ions subject to state-dependent forces. Taking different limits in our theory, we can reproduce two different...
The cold atom Hubbard toolbox (2004)
We review recent theoretical advances in cold atom physics concentrating on strongly correlated cold atoms in optical lattices. We discuss recently developed quantum optical tools for manipulating...
Strong correlation effects and quantum information theory of low dimensional atomic gases (2004)
Paredes,Belen, Garcia-Ripoll,Juan J., Zoller,P., Cirac,J. Ignacio
Quantum information processing using localized ensembles of nuclear spins (2004)
Taylor, J. M., Giedke, G., Christ, H., Paredes, B., Cirac, J. I., Zoller, P., ...
We describe a technique for quantum information processing based on localized en sembles of nuclear spins. A qubit is identified as the presence or absence of a collective excitation of a mesoscopic...
Coupled ion - nanomechanical systems (2004)
We study ions in a nanotrap, where the electrodes are nanomechanical resonantors. The ions play the role of a quantum optical system which acts as a probe and control, and allows entanglement with or...
A Single Atom Transistor in a 1D Optical Lattice (2004)
Micheli, A., Daley, A. J., Jaksch, D., Zoller, P.
We propose a scheme utilising a quantum interference phenomenon to switch the transport of atoms in a 1D optical lattice through a site containing an impurity atom. The impurity represents a qubit...
Generation of Squeezed States of Nanomechanical Resonators by Reservoir Engineering (2004)
Rabl, P., Shnirman, A., Zoller, P.
An experimental demonstration of a non-classical state of a nanomechanical resonator is still an outstanding task. In this paper we show how the resonator can be cooled and driven into a squeezed...
Quantum optical implementation of quantum information processing (2004)
Cirac, J. I., Duan, L. M., Zoller, P.
By popular request we post these old (from 2001) lecture notes of the Varenna Summer School Proceedings. The original was published as J. I. Cirac, L. M. Duan, and P. Zoller, in "Experimental Quantum...
Implementing quantum information processing with atoms, ions and photons (2004)
Zoller, P., Cirac, J. I., Duan, Luming, Garcia-Ripoll, J. J.
Lecture Notes of the Les Houches Summer School 2003 on Quantum entanglement and information processing to be published as P. Zoller, J. I. Cirac, Luming Duan and J. J. Garcia-Ripoll, in "Quantum...
Atomic quantum dots coupled to BEC reservoirs (2004)
Recati, A., Fedichev, P. O., Zwerger, W., Von Delft, J., Zoller, P.
We study the dynamics of an atomic quantum dot, i.e. a single atom in a tight optical trap which is coupled to a superfluid reservoir via laser transitions. Quantum interference between the...
Spin state readout by quantum jump technique: for the purpose of quantum computing (2004)
Pazy, E., Calarco, T., Zoller, P.
Utilizing the Pauli-blocking mechanism we show that shining circular polarized light on a singly-charged quantum dot induces spin dependent fluorescence. Employing the quantum-jump technique we...
Spectroscopy of Superfluid Pairing in Atomic Fermi Gases (2004)
Büchler, H. P., Zoller, P., Zwerger, W.
We study the dynamic structure factor for density and spin within the crossover from BCS superfluidity of atomic fermions to the Bose-Einstein condensation of molecules. Both structure factors are...
Quantum computations with atoms in optical lattices: marker qubits and molecular interactions (2004)
Calarco, T., Dorner, U., Julienne, P., Williams, C., Zoller, P.
We develop a scheme for quantum computation with neutral atoms, based on the concept of "marker" atoms, i.e., auxiliary atoms that can be efficiently transported in state-independent periodic...
Variational ansatz for the superfluid Mott-insulator transition in optical lattices (2004)
Garcia-Ripoll,Juan J., Cirac,J. Ignacio, Zoller,P., Kollath,C., Schollwock,U., Von Delft,J.
Variational ansatz for the superfluid Mott-insulator transition in optical lattices (2004)
Garcia-Ripoll, Juan J., Cirac, J. Ignacio, Zoller, P., Kollath, C., Schollwock, U., Von Delft, J.
Strong correlation effects and quantum information theory of low dimensional atomic gases (2004)
Paredes, Belen, Garcia-Ripoll, Juan J., Zoller, P., Cirac, J. Ignacio
Quantum Optical Implementation of Quantum Information Processing (2004)
Zoller, P., Cirac, J. Ignacio, Duan, Luming, García-Ripoll, Juan J.
Cavity Assisted Nondestructive Laser Cooling of Atomic Qubits (2003)
Griessner, A., Jaksch, D., Zoller, P.
We analyze two configurations for laser cooling of neutral atoms whose internal states store qubits. The atoms are trapped in an optical lattice which is placed inside a cavity. We show that the...
Interfacing quantum optical and solid state qubits (2003)
Tian, L., Rabl, P., Blatt, R., Zoller, P.
We present a generic model of coupling quantum optical and solid state qubits, and the corresponding transfer protocols. The example discussed is a trapped ion coupled to a charge qubit (e.g. Cooper...
Defect-Suppressed Atomic Crystals in an Optical Lattice (2003)
Rabl,P., Daley,A. J., Fedichev,P. O., Cirac,J. Ignacio, Zoller,P.
Single Atom Cooling by Superfluid Immersion: A Non-Destructive Method for Qubits (2003)
Daley, A. J., Fedichev, P. O., Zoller, P.
We present a scheme to cool the motional state of neutral atoms confined in sites of an optical lattice by immersing the system in a superfluid. The motion of the atoms is damped by the generation of...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Inclusive J/psi production in photon-photon collisions has been observed at LEP II beam energies. A clear signal from the reactions gammagamma → J/psi + X is seen. The number of observed...
Laser cooling of a nanomechanical resonator mode to its quantum ground state (2003)
Wilson-Rae, I., Zoller, P., Imamoglu, A.
We show that it is possible to cool a nanomechanical resonator mode to its ground state. The proposed technique is based on resonant laser excitation of a phonon sideband of an embedded quantum dot....
Quantum Computing with Atomic Josephson Junction Arrays (2003)
We present a quantum computing scheme with atomic Josephson junction arrays. The system consists of a small number of atoms with three internal states and trapped in a far-off resonant optical...
Variational ansatz for the superfluid Mott-insulator transition in optical lattices (2003)
Garcia-Ripoll, J. J., Cirac, J. I., Zoller, P., Kollath, C., Schollwoeck, U., Von Delft, J.
We develop a variational wave function for the ground state of a one-dimensional bosonic lattice gas. The variational theory is initally developed for the quantum rotor model and later on extended to...
Fast and robust two-qubit gates for scalable ion trap quantum computing (2003)
Garcia-Ripoll, J. J., Zoller, P., Cirac, J. I.
We propose a new concept for a two-qubit gate operating on a pair of trapped ions based on laser coherent control techniques. The gate is insensitive to the temperature of the ions, works also...
Extended molecules and geometric scattering resonances in optical lattices (2003)
Fedichev, P. O., Bijlsma, M. J., Zoller, P.
We develop a theory describing neutral atoms scattering at low energies in an optical lattice. We show that for a repulsive interaction, as the microscopic scattering length increases, the effective...
We investigate the dynamics of neutral atoms in a 2D optical lattice which traps two distinct internal states of the atoms in different columns. Two Raman lasers are used to coherently transfer atoms...
Calarco, T., Datta, A., Fedichev, P., Pazy, E., Zoller, P.
We present an all-optical implementation of quantum computation using semiconductor quantum dots. Quantum memory is represented by the spin of an excess electron stored in each dot. Two-qubit gates...
Defect-Suppressed Atomic Crystals in an Optical Lattice (2003)
Rabl, P., Daley, A. J., Fedichev, P. O., Cirac, J. I., Zoller, P.
We present a coherent filtering scheme which dramatically reduces the site occupation number defects for atoms in an optical lattice, by transferring a chosen number of atoms to a different internal...
Optical pumping of quantum dot nuclear spins (2003)
Imamoglu, A., Knill, E., Tian, L., Zoller, P.
An all-optical scheme to polarize nuclear spins in a single quantum dot is analyzed. The hyperfine interaction with randomly oriented nuclear spins presents a fundamental limit for electron spin...
Atomic Bose and Anderson glasses in optical lattices (2003)
Damski, B., Zakrzewski, J., Santos, L., Zoller, P., Lewenstein, M.
An ultra cold atomic Bose gas in an optical lattice is shown to provide an ideal system for the controlled analysis of disordered Bose lattice gases. This goal may be easily achieved under the...
Search for resonant $\tilde \nu$ production at $\sqrt s$ = 183 to 208 GeV (2003)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Search for resonant $\tilde \nu$ production at $\sqrt s$ = 183 to 208 GeV (2003)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Search for resonant $\tilde \nu$ production at $\sqrt s$ = 183 to 208 GeV (2003)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Defect-Suppressed Atomic Crystals in an Optical Lattice (2003)
Rabl, P., Daley, A. J., Fedichev, P. O., Cirac, J. Ignacio, Zoller, P.
Search for resonant $\tilde \nu$ production at $\sqrt s$ = 183 to 208 GeV (2003)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Simulation of quantum dynamics with quantum optical systems (2003)
Jane, E., Vidal, G., Dur, W., Zoller, P., Cirac, J. I.
We propose the use of quantum optical systems to perform universal simulation of quantum dynamics. Two specific implementations that require present technology are put forward for illustrative...
Search for resonant $\tilde \nu$ production at $\sqrt s$ = 183 to 208 GeV (2003)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Simulation of quantum dynamics with quantum optical systems (2003)
Jane, E., Vidal, G., Dur, W., Zoller, P., Cirac, J. I.
We propose the use of quantum optical systems to perform universal simulation of quantum dynamics. Two specific implementations that require present technology are put forward for illustrative...
Dissipative spin-boson model and Kondo effect in low dimensional quantum gases (2002)
Recati, A., Fedichev, P. O., Zwerger, W., Von Delft, J., Zoller, P.
We show that ultracold atoms confined in a quasi-1d trap can be used to study the dissipative spin-boson model with {\it tunable} tunneling splitting and strength of dissipation. It is shown that...
Fermi 1D quantum gas: Luttinger liquid approach and spin-charge separation (2002)
Recati, A., Fedichev, P. O., Zwerger, W., Zoller, P.
We discuss the properties of quasi-1D quantum gases of fermionic atoms using the Luttinger liquid theory, including the presence of an optical lattice and of a longitudinal trapping potential. We...
Entangling strings of neutral atoms in 1D atomic pipeline structures (2002)
Dorner, U., Fedichev, P., Jaksch, D., Lewenstein, M., Zoller, P.
We study a string of neutral atoms with nearest neighbor interaction in a 1D beam splitter configuration, where the longitudinal motion is controlled by a moving optical lattice potential. The...
High-temperature superfluidity of fermionic atoms in optical lattices (2002)
Hofstetter,W., Cirac,J. I., Zoller,P., Demler,E., Lukin,M. D.
Fermionic atoms confined in a potential created by standing wave light can undergo a phase transition to a superfluid state at a dramatically increased transition temperature. Depending upon...
Fermionizing a small gas of ultracold bosons (2002)
Paredes,Belen, Zoller,P., Cirac,J. Ignacio
We study the physics of a rapidly rotating gas of ultracold atomic bosons, with an internal degree of freedom. We show that in the limit of rapid rotation of the trap the problem exactly maps onto...
Holonomic quantum computation with neutral atoms (2002)
Recati,A., Calarco,T., Zanardi,P., Cirac,J. I., Zoller,P.
We propose an all-geometric implementation of quantum computation using neutral atoms in cavity QED. We show how to perform generic single- and two-qubit gates, the latter by encoding a two-atom...
Creation of a dipolar superfluid in optical lattices (2002)
Damski, B., Santos, L., Tiemann, E., Lewenstein, M., Kotochigova, S., Julienne, P., ...
We show that by loading a Bose-Einstein condensate (BEC) of two different atomic species into an optical lattice, it is possible to achieve a Mott-insulator phase with exactly one atom of each...
Controlling dynamical phases in quantum optics (2002)
Calarco,T, Jaksch,D, Cirac,JI, Zoller,P
We review and compare several schemes for inducing precisely controlled quantum phases in quantum optical systems, We focus in particular on conditional dynamical phases, i.e. phases obtained via...
Three-dimensional theory for interaction between atomic ensembles and free-space light (2002)
Duan,L. M., Cirac,J. Ignacio, Zoller,P.
Atomic ensembles have shown to be a promising candidate for implementations of quantum information processing by many recently discovered schemes. All these schemes are based on the interaction...
Creation of a molecular condensate by dynamically melting a Mott insulator (2002)
Jaksch,D., Venturi,V., Cirac,J. Ignacio, Williams,C. J., Zoller,P.
We propose the creation of a molecular Bose-Einstein condensate by loading an atomic condensate into an optical lattice and driving it into a Mott insulator with exactly two atoms per site. Molecules...
Simulation of quantum dynamics with quantum optical systems (2002)
Jané, E., Vidal, G., Dür, W., Zoller, P., Cirac, J. I.
We propose the use of quantum optical systems to perform universal simulation of quantum dynamics. Two specific implementations that require present technology are put forward for illustrative...
Spin-charge separation in ultra-cold quantum gases (2002)
Recati, A., Fedichev, P. O., Zwerger, W., Zoller, P.
We investigate the physical properties of quasi-1D quantum gases of fermion atoms confined in harmonic traps. Using the fact that for a homogeneous gas, the low energy properties are exactly...
Many particle entanglement in two-component Bose-Einstein Condensates (2002)
Micheli, A., Jaksch, D., Cirac, J. I., Zoller, P.
We investigate schemes to dynamically create many particle entangled states of a two component Bose-Einstein condensate in a very short time proportional to 1/N where $N$ is the number of condensate...
Three-dimensional theory for interaction between atomic ensembles and free-space light (2002)
Atomic ensembles have shown to be a promising candidate for implementations of quantum information processing by many recently-discovered schemes. All these schemes are based on the interaction...
Rapidity-Alignment and $mrm{p}_T$ Compensation of Particle Pairs in Hadronic $Z^0$ Decays (2002)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Observation is made of rapidity-alignment of \KK and \pp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark. The \KK and...
High-temperature superfluidity of fermionic atoms in optical lattices (2002)
Hofstetter, W., Cirac, J. I., Zoller, P., Demler, E., Lukin, M. D.
The experimental realizations of degenerate Bose and Fermi atomic samples have stimulated a new wave of studies of quantum many-body systems in the dilute and weakly interacting regime. The...
Creation of a molecular condensate by dynamically melting a Mott-insulator (2002)
Jaksch, D., Venturi, V., Cirac, J. I., Williams, C. J., Zoller, P.
We propose creation of a molecular Bose-Einstein condensate (BEC) by loading an atomic BEC into an optical lattice and driving it into a Mott insulator (MI) with exactly two atoms per site. Molecules...
Holonomic quantum computation with neutral atoms (2002)
Recati, A., Calarco, T., Zanardi, P., Cirac, J. I., Zoller, P.
We propose an all-geometric implementation of quantum computation using neutral atoms in cavity QED. We show how to perform generic single- and two-qubit gates, the latter by encoding a two-atom...
Laser driven atoms in half-cavities (2002)
The behavior of a two level atom in a half-cavity, i.e. a cavity with one mirror, is studied within the framework of a one dimensional model with respect to spontaneous decay and resonance...
Fermionizing a small gas of ultracold bosons (2002)
Paredes, B., Zoller, P., Cirac, J. I.
We study the physics of a rapidly-rotating gas of ultracold atomic bosons, with an internal degree of freedom. We show that in the limit of rapid rotation of the trap the problem exactly maps onto...
Quantum entanglement in spinor Bose-Einstein condensates (2002)
Duan,L. M., Cirac,J. Ignacio, Zoller,P.
We propose a scheme to generate and detect various kinds of quantum entanglement in a spin-1 Bose-Einstein condensate. It is shown that substantial many-particle entanglement can be generated...
Dynamically turning off interactions in a two-component condensate (2002)
Jaksch,D., Cirac,J. Ignacio, Zoller,P.
We propose a mechanism to change the interaction strengths of a two-component condensate. It is shown that the application of π/2 pulses allows us to alter the effective interspecies-interaction...
Rapidity alignment and p(T) compensation of particle pairs in hadronic Z0 decays (2002)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, ...
b-tagging in DELPHI at LEP (2002)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Rapidity-Alignment and $P_T$ Compensation of Particle Pairs in Hadronic $Z^0$ Decays (2002)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Observation is made of rapidity-alignment of \KK and \pp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark. The \KK and...
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Neutral Higgs bosons of the Standard Model ({\sc SM}) and the Minimal Supersymmetric Standard Model ({\sc MSSM}) were searched for in the data collected in 1999 by the DELPHI experiment at...
Search for Charged Higgs Bosons in $e^+ e^-$ Collisions at $\sqrt{s}$=189-202 GeV (2002)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189~GeV to 202~GeV\@. The three...
b-tagging in DELPHI at LEP (2002)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Rapidity-Alignment and $P_T$ Compensation of Particle Pairs in Hadronic $Z^0$ Decays (2002)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Observation is made of rapidity-alignment of \KK and \pp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark. The \KK and...
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Neutral Higgs bosons of the Standard Model ({\sc SM}) and the Minimal Supersymmetric Standard Model ({\sc MSSM}) were searched for in the data collected in 1999 by the DELPHI experiment at...
Search for Charged Higgs Bosons in $e^+ e^-$ Collisions at $\sqrt{s}$=189-202 GeV (2002)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189~GeV to 202~GeV\@. The three...
Rapidity-Alignment and $P_T$ Compensation of Particle Pairs in Hadronic $Z^0$ Decays (2002)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Observation is made of rapidity-alignment of \KK and \pp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark. The \KK and...
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Neutral Higgs bosons of the Standard Model ({\sc SM}) and the Minimal Supersymmetric Standard Model ({\sc MSSM}) were searched for in the data collected in 1999 by the DELPHI experiment at...
Search for Charged Higgs Bosons in $e^+ e^-$ Collisions at $\sqrt{s}$=189-202 GeV (2002)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189~GeV to 202~GeV\@. The three...
Controlling dynamical phases in quantum optics (2002)
Calarco, T, Jaksch, D, Cirac, JI, Zoller, P
We review and compare several schemes for inducing precisely controlled quantum phases in quantum optical systems, We focus in particular on conditional dynamical phases, i.e. phases obtained via...
Three-dimensional theory for interaction between atomic ensembles and free-space light (2002)
Duan, L. M., Cirac, J. Ignacio, Zoller, P.
Atomic ensembles have shown to be a promising candidate for implementations of quantum information processing by many recently discovered schemes. All these schemes are based on the interaction...
Creation of a molecular condensate by dynamically melting a Mott insulator (2002)
Jaksch, D., Venturi, V., Cirac, J. Ignacio, Williams, C. J., Zoller, P.
We propose the creation of a molecular Bose-Einstein condensate by loading an atomic condensate into an optical lattice and driving it into a Mott insulator with exactly two atoms per site. Molecules...
Fermionizing a small gas of ultracold bosons (2002)
Paredes, Belen, Zoller, P., Cirac, J. Ignacio
We study the physics of a rapidly rotating gas of ultracold atomic bosons, with an internal degree of freedom. We show that in the limit of rapid rotation of the trap the problem exactly maps onto...
Quantum entanglement in spinor Bose-Einstein condensates (2002)
Duan, L. M., Cirac, J. Ignacio, Zoller, P.
We propose a scheme to generate and detect various kinds of quantum entanglement in a spin-1 Bose-Einstein condensate. It is shown that substantial many-particle entanglement can be generated...
Dynamically turning off interactions in a two-component condensate (2002)
Jaksch, D., Cirac, J. Ignacio, Zoller, P.
We propose a mechanism to change the interaction strengths of a two-component condensate. It is shown that the application of π/2 pulses allows us to alter the effective interspecies-interaction...
Holonomic quantum computation with neutral atoms (2002)
Recati, A., Calarco, T., Zanardi, P., Cirac, J. I., Zoller, P.
We propose an all-geometric implementation of quantum computation using neutral atoms in cavity QED. We show how to perform generic single- and two-qubit gates, the latter by encoding a two-atom...
High-temperature superfluidity of fermionic atoms in optical lattices (2002)
Hofstetter, W., Cirac, J. I., Zoller, P., Demler, E., Lukin, M. D.
Fermionic atoms confined in a potential created by standing wave light can undergo a phase transition to a superfluid state at a dramatically increased transition temperature. Depending upon...
Rapidity-Alignment and $P_T$ Compensation of Particle Pairs in Hadronic $Z^0$ Decays (2002)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Observation is made of rapidity-alignment of \KK and \pp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark. The \KK and...
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Neutral Higgs bosons of the Standard Model ({\sc SM}) and the Minimal Supersymmetric Standard Model ({\sc MSSM}) were searched for in the data collected in 1999 by the DELPHI experiment at...
Search for Charged Higgs Bosons in $e^+ e^-$ Collisions at $\sqrt{s}$=189-202 GeV (2002)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189~GeV to 202~GeV\@. The three...
Rapidity-Alignment and $P_T$ Compensation of Particle Pairs in Hadronic $Z^0$ Decays (2002)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Observation is made of rapidity-alignment of \KK and \pp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark. The \KK and...
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Neutral Higgs bosons of the Standard Model ({\sc SM}) and the Minimal Supersymmetric Standard Model ({\sc MSSM}) were searched for in the data collected in 1999 by the DELPHI experiment at...
Search for Charged Higgs Bosons in $e^+ e^-$ Collisions at $\sqrt{s}$=189-202 GeV (2002)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189~GeV to 202~GeV\@. The three...
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Neutral Higgs bosons of the Standard Model ({\sc SM}) and the Minimal Supersymmetric Standard Model ({\sc MSSM}) were searched for in the data collected in 1999 by the DELPHI experiment at...
Geometric Manipulation of Trapped Ions for Quantum Computation (2001)
Duan, L. M., Cirac, J. I., Zoller, P.
We propose an experimentally feasible scheme to achieve quantum computation based solely on geometric manipulations of a quantum system. The desired geometric operations are obtained by driving the...
Dynamically turning off interactions in a two component condensate (2001)
Jaksch, D., Cirac, J. I., Zoller, P.
We propose a mechanism to change the interaction strengths of a two component condensate. It is shown that the application of pi/2 pulses allows to alter the effective interspecies interaction...
Search for technicolor with DELPHI (2001)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles $\rho_T$ and $\pi_T$ have been performed in the data collected...
Search for Charged Higgs Bosons in $e^{+} e^{-}$ Collisions at $\sqrt{s}$=189-202 GeV (2001)
Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ...
A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189~GeV to 202~GeV\@. The three...
Spin-based optical quantum gates via Pauli blocking in semiconductor quantum dots (2001)
Pazy, E., Biolatti, E., Calarco, T., D'Amico, I., Zanardi, P., Rossi, F., ...
We present a solid-state implementation of ultrafast conditional quantum gates. Our proposal for a quantum-computing device is based on the spin degrees of freedom of electrons confined in...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI...
Quantum entanglement in spinor Bose-Einstein condensates (2001)
We propose a scheme to generate and detect various kinds of quantum entanglement in a spin-1 Bose-Einstein condensate. It is shown that substantial many-particle entanglement can be generated...
Dipole blockade and quantum information processing in mesoscopic atomic ensembles (2001)
Lukin, MD, Fleischhauer, M, Côte, Renaud; U0051201, Duan, LM, Jaksch, D, Cirac, JI, ...
We describe a technique for manipulating quantum information stored in collective states of mesoscopic ensembles. Quantum processing is accomplished by optical excitation into states with strong...
Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles (2001)
Lukin, M.D., Fleischhauer, M., Cote, R., Duan, L.M., Jaksch, D., Cirac, J.I., ...
Abstract: We describe a technique for manipulating quantum information stored in collective states of mesoscopic ensembles. Quantum processing is accomplished by optical excitation into states with...
A Measurement of the Tau Topological Branching Ratios (2001)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been performed, giving...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average...
Search for a fermiophobic Higgs at LEP 2 (2001)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...
Measurement of $V_{cb}$ from the decay process $\bar{B^0} \to D^{*+} \ell^- \bar{\nu}$ (2001)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+}...
Distillability Criterion for all Bipartite Gaussian States (2001)
Giedke, G., Cirac, J. I., Zoller, P.
We prove that all inseparable Gaussian states of two modes can be distilled into maximally entangled pure states by local operations. Using this result we show that a bipartite Gaussian state of...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A more general MSSM parameter scan is described
1/2-Anyons in small atomic Bose-Einstein condensates (2001)
Paredes, B., Fedichev, P., Cirac, J. I., Zoller, P.
We discuss a way of creating, manipulating and detecting anyons in rotating Bose-Einstein condensates consisting of a small number of atoms . By achieving a quasidegeneracy in the atomic motional...
Search for the Standard Model Higgs boson at LEP in the year 2000 (2001)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Searches for the Standard Model Higgs boson have been performed in the data collected by the DELPHI experiment at LEP in the year 2000 at centre-of-mass energies between 200 and...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Measurements of the trilinear gauge boson couplings $WW\gamma$ and $WWZ$ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189~GeV and combined with DELPHI data at...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric...
Search for sleptons in $e^+ e^-$ collisions at $\sqrt{s}$= 183 to 189 GeV (2001)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Data taken by the {\tt DELPHI} experiment at centre-of-mass energies of 183~\GeV\ and 189~\GeV\ with a total integrated luminosity of 212 pb$^{-1} have been used to search for the supersymmetric...
Uniting Bose-Einstein condensates in optical resonators (2001)
Jaksch, D., Gardiner, S. A., Schulze, K., Cirac, J. I., Zoller, P.
The relative phase of two initially independent Bose-Einstein condensates can be laser cooled to unite the two condensates by putting them into a ring cavity and coupling them with an internal...
A Measurement of the tau topological branching ratios (2001)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
Measurement of V(cb) from the decay process anti-B0 ---> D*+ lepton- anti-neutrino (2001)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
Measurement of the mass and width of the W boson in e+ e- collisions at s**(1/2) = 189-GeV (2001)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
Search for a fermiophobic Higgs at LEP-2 (2001)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, ...
Search for charged Higgs bosons in e+ e- collisions at s**(1/2) = 189-GeV - 202-GeV (2001)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
Search for technicolor with DELPHI (2001)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, Z, ...
Searches for neutral Higgs bosons in e+ e- collisions from s**(1/2) = 191.6-GeV to 201.7-GeV (2001)
DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, Z, ...
Search for technicolor with DELPHI (2001)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles $\rho_T$ and $\pi_T$ have been performed in the data collected...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Abstract: The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the...
A Measurement of the Tau Topological Branching Ratios (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Abstract: Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average...
Measurement of V$_{cb}$ from the decay process $\bar{B^0}$ - D$^{*+} \ell^- \bar{\nu}$ (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+}...
Search for neutralino pair production at $\sqrt{s}$ = 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...
Search for a fermiophobic Higgs at LEP 2 (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...
Search for sleptons in $e^+ e^-$ collisions at $\sqrt{s}$= 183 to 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Data taken by the {\tt DELPHI} experiment at centre-of-mass energies of 183~\GeV\ and 189~\GeV\ with a total integrated luminosity of 212 pb$^{-1}$ have been used to search for the supersymmetric...
Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for spontaneous $R$-parity violating signals at $\sqrt{s}=183$\,GeV and \mbox{$\sqrt{s}=189$\,GeV} have been performed using 1997 and 1998 DELPHI data, under the assumption of $R$-parity...
Search for the standard model Higgs boson at LEP in the year 2000 (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for pair production of gauginos and squarks in $e^{+} e^{-}$ collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158...
Measurement of the ZZ cross-section in $e^+ e^-$ interactions at 183-189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Abstract: Measurements of on-shell $ZZ$ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies $\sqrt s$ = 182.6 GeV and 188.6 GeV respectively. Results...
Search for technicolor with DELPHI (2001)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles $\rho_T$ and $\pi_T$ have been performed in the data collected...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Abstract: The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the...
A Measurement of the Tau Topological Branching Ratios (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Abstract: Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average...
Measurement of V$_{cb}$ from the decay process $\bar{B^0}$ - D$^{*+} \ell^- \bar{\nu}$ (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+}...
Search for neutralino pair production at $\sqrt{s}$ = 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...
Search for a fermiophobic Higgs at LEP 2 (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...
Search for sleptons in $e^+ e^-$ collisions at $\sqrt{s}$= 183 to 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Data taken by the {\tt DELPHI} experiment at centre-of-mass energies of 183~\GeV\ and 189~\GeV\ with a total integrated luminosity of 212 pb$^{-1}$ have been used to search for the supersymmetric...
Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for spontaneous $R$-parity violating signals at $\sqrt{s}=183$\,GeV and \mbox{$\sqrt{s}=189$\,GeV} have been performed using 1997 and 1998 DELPHI data, under the assumption of $R$-parity...
Search for the standard model Higgs boson at LEP in the year 2000 (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for pair production of gauginos and squarks in $e^{+} e^{-}$ collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158...
Measurement of the ZZ cross-section in $e^+ e^-$ interactions at 183-189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Abstract: Measurements of on-shell $ZZ$ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies $\sqrt s$ = 182.6 GeV and 188.6 GeV respectively. Results...
Search for technicolor with DELPHI (2001)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles $\rho_T$ and $\pi_T$ have been performed in the data collected...
A Measurement of the Tau Topological Branching Ratios (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been performed, giving...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average...
Measurement of V$_{cb}$ from the decay process $\bar{B^0}$ - D$^{*+} \ell^- \bar{\nu}$ (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+}...
Search for neutralino pair production at $\sqrt{s}$ = 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...
Search for a fermiophobic Higgs at LEP 2 (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric...
Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for spontaneous $R$-parity violating signals at $\sqrt{s}=183$\,GeV and \mbox{$\sqrt{s}=189$\,GeV} have been performed using 1997 and 1998 DELPHI data, under the assumption of $R$-parity...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for pair production of gauginos and squarks in $e^{+} e^{-}$ collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158...
Measurement of the ZZ cross-section in $e^+ e^-$ interactions at 183-189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Measurements of on-shell $ZZ$ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies $\sqrt s$ = 182.6 GeV and 188.6 GeV respectively. Results obtained...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
A Measurement of the Tau Topological Branching Ratios (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been performed, giving...
Search for technicolor with DELPHI (2001)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles $\rho_T$ and $\pi_T$ have been performed in the data collected...
Measurement of V$_{cb}$ from the decay process $\bar{B^0}$ - D$^{*+} \ell^- \bar{\nu}$ (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+}...
Search for neutralino pair production at $\sqrt{s}$ = 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...
Search for a fermiophobic Higgs at LEP 2 (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...
Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for spontaneous $R$-parity violating signals at $\sqrt{s}=183$\,GeV and \mbox{$\sqrt{s}=189$\,GeV} have been performed using 1997 and 1998 DELPHI data, under the assumption of $R$-parity...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for pair production of gauginos and squarks in $e^{+} e^{-}$ collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158...
Measurement of the ZZ cross-section in $e^+ e^-$ interactions at 183-189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Measurements of on-shell $ZZ$ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies $\sqrt s$ = 182.6 GeV and 188.6 GeV respectively. Results obtained...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
A Measurement of the Tau Topological Branching Ratios (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been performed, giving...
Search for technicolor with DELPHI (2001)
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., ...
Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles $\rho_T$ and $\pi_T$ have been performed in the data collected...
Measurement of V$_{cb}$ from the decay process $\bar{B^0}$ - D$^{*+} \ell^- \bar{\nu}$ (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+}...
Search for neutralino pair production at $\sqrt{s}$ = 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...
Search for a fermiophobic Higgs at LEP 2 (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...
Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for spontaneous $R$-parity violating signals at $\sqrt{s}=183$\,GeV and \mbox{$\sqrt{s}=189$\,GeV} have been performed using 1997 and 1998 DELPHI data, under the assumption of $R$-parity...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for pair production of gauginos and squarks in $e^{+} e^{-}$ collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158...
Measurement of the ZZ cross-section in $e^+ e^-$ interactions at 183-189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Measurements of on-shell $ZZ$ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies $\sqrt s$ = 182.6 GeV and 188.6 GeV respectively. Results obtained...
Uniting Bose-Einstein Condensates in Optical Resonators (2001)
Cirac, J. I., Gardiner, S. A., Jaksch, D., Schulze, K., Zoller, P.
Search for neutralino pair production at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Muon pair production in the process $e^+e^-\to e^+e^-\mu^+\mu^-$ is studied using the data taken at LEP1 ($\sqrt{s}\simeq m_Z$) with the DELPHI detector during the years 1992-1995. The corresponding...
Measurement of the ZZ cross-section in $e^+ e^-$ interactions at 183-189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Measurements of on-shell $ZZ$ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies $\sqrt s$ = 182.6 GeV and 188.6 GeV respectively. Results obtained...
Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Searches for spontaneous $R$-parity violating signals at $\sqrt{s}=183$\,GeV and \mbox{$\sqrt{s}=189$\,GeV} have been performed using 1997 and 1998 DELPHI data, under the assumption of $R$-parity...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Searches for pair production of gauginos and squarks in $e^{+} e^{-}$ collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158...
Laser probing of Cooper-paired trapped atoms (2000)
Bruun, G. M., Torma, P., Rodriguez, M., Zoller, P.
We consider a gas of trapped Cooper-paired fermionic atoms which are manipulated by laser light. The laser induces a transition from an internal state with large negative scattering length...
Cavity assisted quasiparticle damping in a Bose-Einstein condensate (2000)
Gardiner, S. A., Gheri, K. M., Zoller, P.
We consider an atomic Bose-Einstein condensate held within an optical cavity and interacting with laser fields. We show how the interaction of the cavity mode with the condensate can cause energy due...
Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles (2000)
Lukin, M. D., Fleischhauer, M., Cote, R., Duan, L. M., Jaksch, D., Cirac, J. I., ...
We describe a technique for manipulating quantum information stored in collective states of mesoscopic ensembles. Quantum processing is accomplished by optical excitation into states with strong...
Entangling ions in arrays of microscopic traps (2000)
Calarco, T., Cirac, J. I., Zoller, P.
We consider a system of particles in an array of microscopic traps, coupled to each other via electrostatic interaction, and pushed by an external state-dependent force. We show how to implement a...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the...
Search for the sgoldstino at $\sqrt{s}$ from 189 to 202 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S$\gLWahlen, H
Search for supersymmetric partners of top and bottom quarks at $\sqrt{s}$= 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...
Fast quantum gates for neutral atoms (2000)
Jaksch, D, Cirac, JI, Zoller, P, Rolston, SL, Côte, Renaud; U0051201, Lukin, MD
We propose several schemes fur implementing a fast two-qubit quantum gate Fur neutral atoms with the gate operation time much faster than the time scales associated with the external motion of the...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A test of the QED process \eeintogg(\fot) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest ener\-gies achieved at LEP, reaching 202 GeV in the...
Limits on the Masses of Supersymmetric Particles at $\sqrt{s}$=189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...
Rapidity-Rank Structure of $p\overline{p}$ Pairs in Hadronic $Z^{0}$ Decays (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb, where $M$...
Squeezing and entanglement of atomic beams (2000)
Sørensen, A., Cirac, J. I., Zoller, P.
We propose and analyze a scheme for generating entangled atomic beams out of a Bose-Einstein condensate using spin-exchanging collisions. In particular, we show how to create both atomic squeezed...
Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Searches for pair production of supersymmetric particlesunder the assumption that $R$--parity is not conserved are presented,based on data recorded by the DELPHI detector in 1998from e$^{+}$e$^{-}$...
Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The data collected by DELPHI in 1998 at the centre-of-mass energy of 189~GeVhave been used to update the search for charginos nearly mass-degenerate withthe lightest supersymmetric particle, which is...
Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
An analysis of the data collected in 1997 and 1998 with the DELPHIdetector at $e^+e^-$ collision energies close to 183 and 189GeV was performed in order to extract the hadronic and leptonic...
Sonic black holes in dilute Bose-Einstein condensates (2000)
Garay, L. J., Anglin, J. R., Cirac, J. I., Zoller, P.
The sonic analog of a gravitational black hole in dilute-gas Bose-Einstein condensates is investigated. It is shown that there exist both dynamically stable and unstable configurations which, in the...
Dynamic splitting of a Bose-Einstein Condensate (2000)
Menotti, C., Anglin, J. R., Cirac, J. I., Zoller, P.
We study the dynamic process of splitting a condensate by raising a potential barrier in the center of a harmonic trap. We use a two-mode model to describe the phase coherence between the two halves...
Bose-Einstein condensation in trapped dipolar gases (2000)
Santos, L., Shlyapnikov, G. V., Zoller, P., Lewenstein, M.
We discuss Bose-Einstein condensation in a trapped gas of bosonic particles interacting dominantly via dipole-dipole forces. We find that in this case the mean-field interparticle interaction and,...
Fast quantum gates for neutral atoms (2000)
Jaksch, D., Cirac, J. I., Zoller, P., Rolston, S. L., Cote, R., Lukin, M. D.
We propose several schemes for implementing a fast two-qubit quantum gate for neutral atoms with the gate operation time much faster than the time scales associated with the external motion of the...
Measurement of the $\overline{B} \to D^{(*)}\pi l\overline{\nu}_l$ Branching Fraction (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
A study of $b$ semileptonic decays into $D$, $D\pi^{\pm}$ and $D^*\pi^{\pm}$ final states is presented.The $D^0$, $D^+$ and $D^{*+}$ mesons are exclusively reconstructed in $Z$ decay data recorded...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$has been measured with the data sample collected by DELPHIat an average centre-of-mass energy of 189~GeV andcorresponding to an integrated...
Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Searches for neutral Higgs bosons in the Standard Model and the MSSM havebeen performed using data collected by the DELPHI experiment at acentre-of-mass energy of 188.7 GeV, corresponding toan...
A Study of the Lorentz Structure in $\tau$ Decays (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
This paper describes a measurement of the Michel parameters, $\eta$, $\rho$, $\xi$, $\xi \delta$, and the average $\nu_{\tau}$helicity, $h_{\nu_{\tau}}$, in $\tau$ lepton decays together withthe...
Duan, Lu-Ming, Giedke, G., Cirac, J. I., Zoller, P.
We give a detailed description of the entanglement purification protocol which generates maximally entangled states with high efficiencies from realistic Gaussian continuous variable entangled...
Quantum communication between atomic ensembles using coherent light (2000)
Duan, Lu-Ming, Cirac, J. I., Zoller, P., Polzik, E. S.
Protocols for quantum communication between massive particles, such as atoms, are usually based on transmitting nonclassical light, and/or super-high finesse optical cavities are normally needed to...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...
Determination of |$V_{ub}$|/|$V_{cb}$| with DELPHI at LEP (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
The ratio of the CKM quark-mixing matrix elements |V_{ub}|/|V_{cb}|has been measured using B hadron semileptonic decays.The analysis is based on a novel technique, recently proposed by theoreticians,...
Photon Events with Missing Energy at $\sqrt{s}$= 183 to 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The production of single photons has been studiedin the reaction e+e- --> gamma+ invisible particles at centre-of-mass energies of 183~GeV and 189~GeV.A previously published analysis of events with...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at...
Search for supersymmetric particles in scenarios with gravitino LSP and stau NLSP (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Sleptons, neutralinos and charginos were searched for in the context of scenarios where the lightest supersymmetric particle isthe gravitino.It was assumed that the stau is the next-to-lightest...
Identified Charged Particles in Quark and Gluon Jets (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and...
Search for charginos in $e^+ e^-$ interactions at $\sqrt{s}$= 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
An update of the searches for charginos and gravitinodon a data sample corresponding to the 158 pb$^{-1}$ rIdetector in 1998, at a centre-of-mass energy of 18asignal was found. The lower mass limits...
Inclusive $\Sigma^{-}$ and $\Lambda(1520)$ production in hadronic Z decays (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
The DELPHI detector at LEP has collected 54 pb$^{-1}$ of dataat a centre-of-mass energy around 183 GeV during 1997,158 pb$^{-1}$ around 189 GeV during 1998,and 187 pb$^{-1}$ between 192 and 200 GeV...
Sonic analog of gravitational black holes in Bose-Einstein condensates (2000)
Garay, L. J., Anglin, J. R., Cirac, J. I., Zoller, P.
It is shown that, in dilute-gas Bose-Einstein condensates, there exist both dynamically stable and unstable configurations which, in the hydrodynamic limit, exhibit a behavior resembling that of...
Laser probing of atomic Cooper pairs (2000)
We consider a gas of attractively interacting cold Fermionic atoms which are manipulated by laser light. The laser induces a transition from an internal state with large negative scattering length to...
$\Lambda_{b}$ polarization in $Z^{0}$ decays at LEP (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
A search for invisible Higgs bosons produced in e+ e- interactions up to s**(1/2) = 189-GeV (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
A Study of the Lorentz structure in tau decays (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
Determination of |V(ub)| / |V(cb)| with DELPHI at LEP (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
Inclusive Sigma- and Lambda(1520) production in hadronic Z decays (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, ...
Identified charged particles in quark and gluon jets (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
Limits on the masses of supersymmetric particles at s**(1/2) = 189-GeV (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Azhinenko, I, ...
Photon events with missing energy at s**(1/2) = 183-GeV to 189-GeV (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Azhinenko, I, ...
Measurement of the Z Z cross-section in e+ e- interactions at 183-GeV - 189-GeV (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, ...
Rapidity-rank structure of p anti-p pairs in hadronic Z0 decays (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Azhinenko, I, ...
Search for neutralino pair production at s**(1/2) = 189-GeV (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Azhinenko, I, ...
Search for R-parity violation with a anti-U anti-D anti-D coupling at x**(1/2) = 189-GeV (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, ...
Search for heavy stable and longlived particles in e+ e- collisions at s**(1/2) = 189-GeV (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
Search for sleptons in e+ e- collisions at s**(1/2) = 183-GeV to 189-GeV (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Azhinenko, I, ...
Search for SUSY with R-parity violating LL anti-E couplings at s**(1/2) = 189-GeV (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
Search for supersymmetric partners of top and bottom quarks at s**(1/2) = 189-GeV (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, ...
Searches for neutral Higgs bosons in e+ e- collisions around s**(1/2) = 189-GeV (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
Search for the sgoldstino at s**(1/2) from 189-GeV to 202-GeV (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
Search for the standard model Higgs boson at LEP in the year 2000 (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
W pair production cross-section and W branching fractions in e+ e- interactions at 189-GeV (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, ...
Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Azhinenko, I, ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at...
Search for supersymmetric partners of top and bottom quarks at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Using the data sample of hadronic $Z^0$ decays collected by the DELPHI experiment in the 1992-1995 LEP1 period, the leptonic decay of the charged $B$ mesons (\btauex) has been studied. The analysis...
Search for the sgoldstino at $\sqrt{s}$ from 189 to 202 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S$\gamma$ followed by S decay into two gluons or into two photons was studied at 189 -...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the...
Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for neutral Higgs bosons in the Standard Model and the MSSM havebeen performed using data collected by the DELPHI experiment at acentre-of-mass energy of 188.7 GeV, corresponding toan...
Identified Charged Particles and Resonances in Quark and Gluon Jets (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A test of the QED process \eeintogg(\fot) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest ener\-gies achieved at LEP, reaching 202 GeV in the...
Photon Events with Missing Energy at $\sqrt{s}$= 183 to 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The production of single photons has been studiedin the reaction e+e- --> gamma+ invisible particles at centre-of-mass energies of 183~GeV and 189~GeV.A previously published analysis of events with...
Rapidity-rank structure of $p\overline{p}$ pairs in hadronic $Z^0$ decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Abstract: The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb,...
Limits on the masses of supersymmetric particles at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...
Search for supersymmetric particles in scenarios with gravitino LSP and stau NLSP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Sleptons, neutralinos and charginos were searched for in the context of scenarios where the lightest supersymmetric particle isthe gravitino.It was assumed that the stau is the next-to-lightest...
A Study of the Lorentz Structure in Tau Decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
This paper describes a measurement of the Michel parameters, $\eta$, $\rho$, $\xi$, $\xi \delta$, and the average $\nu_{\tau}$helicity, $h_{\nu_{\tau}}$, in $\tau$ lepton decays together withthe...
Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Abstract: Searches for pair production of supersymmetric particlesunder the assumption that $R$--parity is not conserved are presented,based on data recorded by the DELPHI detector in 1998from...
Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The data collected by DELPHI in 1998 at the centre-of-mass energy of 189~GeVhave been used to update the search for charginos nearly mass-degenerate withthe lightest supersymmetric particle, which is...
Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An analysis of the data collected in 1997 and 1998 with the DELPHIdetector at $e^+e^-$ collision energies close to 183 and 189GeV was performed in order to extract the hadronic and leptonic...
A Precise Measurement of the $\tau$ Polarisation at LEP-1 (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The $\tau$ polarisation has been studied with the $\eett$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the $\Z$ resonance firstly through the exclusive decay channels...
Search for charginos in $e^+ e^-$ interactions at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
An update of the searches for charginos and gravitinodon a data sample corresponding to the 158 pb$^{-1}$ rIdetector in 1998, at a centre-of-mass energy of 18asignal was found. The lower mass limits...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$has been measured with the data sample collected by DELPHIat an average centre-of-mass energy of 189~GeV andcorresponding to an integrated...
Determination of $\mid V_{ub} \mid/\mid V_{cb} \mid$ with DELPHI at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The ratio of the CKM quark-mixing matrix elements |V_{ub}|/|V_{cb}|has been measured using B hadron semileptonic decays.The analysis is based on a novel technique, recently proposed by theoreticians,...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...
Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and...
Measurement of the $\overline{B} \to D^{(*)}\pi l\overline{\nu}_{l}$ branching fraction (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
$\Lambda_b$ polarization in $Z^{0}$ decays at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The study of the directional dependence of two-particle correlations in the hadronic decays of the $Z^0$ boson is performed using the data collected by the DELPHI experiment in the 1992--1995 running...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at...
Search for supersymmetric partners of top and bottom quarks at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Using the data sample of hadronic $Z^0$ decays collected by the DELPHI experiment in the 1992-1995 LEP1 period, the leptonic decay of the charged $B$ mesons (\btauex) has been studied. The analysis...
Search for the sgoldstino at $\sqrt{s}$ from 189 to 202 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S$\gamma$ followed by S decay into two gluons or into two photons was studied at 189 -...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the...
Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for neutral Higgs bosons in the Standard Model and the MSSM havebeen performed using data collected by the DELPHI experiment at acentre-of-mass energy of 188.7 GeV, corresponding toan...
Identified Charged Particles and Resonances in Quark and Gluon Jets (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A test of the QED process \eeintogg(\fot) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest ener\-gies achieved at LEP, reaching 202 GeV in the...
Photon Events with Missing Energy at $\sqrt{s}$= 183 to 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The production of single photons has been studiedin the reaction e+e- --> gamma+ invisible particles at centre-of-mass energies of 183~GeV and 189~GeV.A previously published analysis of events with...
Rapidity-rank structure of $p\overline{p}$ pairs in hadronic $Z^0$ decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Abstract: The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb,...
Limits on the masses of supersymmetric particles at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...
Search for supersymmetric particles in scenarios with gravitino LSP and stau NLSP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Sleptons, neutralinos and charginos were searched for in the context of scenarios where the lightest supersymmetric particle isthe gravitino.It was assumed that the stau is the next-to-lightest...
A Study of the Lorentz Structure in Tau Decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
This paper describes a measurement of the Michel parameters, $\eta$, $\rho$, $\xi$, $\xi \delta$, and the average $\nu_{\tau}$helicity, $h_{\nu_{\tau}}$, in $\tau$ lepton decays together withthe...
Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Abstract: Searches for pair production of supersymmetric particlesunder the assumption that $R$--parity is not conserved are presented,based on data recorded by the DELPHI detector in 1998from...
Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The data collected by DELPHI in 1998 at the centre-of-mass energy of 189~GeVhave been used to update the search for charginos nearly mass-degenerate withthe lightest supersymmetric particle, which is...
Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An analysis of the data collected in 1997 and 1998 with the DELPHIdetector at $e^+e^-$ collision energies close to 183 and 189GeV was performed in order to extract the hadronic and leptonic...
A Precise Measurement of the $\tau$ Polarisation at LEP-1 (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The $\tau$ polarisation has been studied with the $\eett$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the $\Z$ resonance firstly through the exclusive decay channels...
Search for charginos in $e^+ e^-$ interactions at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
An update of the searches for charginos and gravitinodon a data sample corresponding to the 158 pb$^{-1}$ rIdetector in 1998, at a centre-of-mass energy of 18asignal was found. The lower mass limits...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$has been measured with the data sample collected by DELPHIat an average centre-of-mass energy of 189~GeV andcorresponding to an integrated...
Determination of $\mid V_{ub} \mid/\mid V_{cb} \mid$ with DELPHI at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The ratio of the CKM quark-mixing matrix elements |V_{ub}|/|V_{cb}|has been measured using B hadron semileptonic decays.The analysis is based on a novel technique, recently proposed by theoreticians,...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...
Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and...
Measurement of the $\overline{B} \to D^{(*)}\pi l\overline{\nu}_{l}$ branching fraction (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
$\Lambda_b$ polarization in $Z^{0}$ decays at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The study of the directional dependence of two-particle correlations in the hadronic decays of the $Z^0$ boson is performed using the data collected by the DELPHI experiment in the 1992--1995 running...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at...
Search for supersymmetric partners of top and bottom quarks at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Using the data sample of hadronic $Z^0$ decays collected by the DELPHI experiment in the 1992-1995 LEP1 period, the leptonic decay of the charged $B$ mesons (\btauex) has been studied. The analysis...
Search for the sgoldstino at $\sqrt{s}$ from 189 to 202 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S$\gamma$ followed by S decay into two gluons or into two photons was studied at 189 -...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the...
Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for neutral Higgs bosons in the Standard Model and the MSSM havebeen performed using data collected by the DELPHI experiment at acentre-of-mass energy of 188.7 GeV, corresponding toan...
Identified Charged Particles and Resonances in Quark and Gluon Jets (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A test of the QED process \eeintogg(\fot) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest ener\-gies achieved at LEP, reaching 202 GeV in the...
Photon Events with Missing Energy at $\sqrt{s}$= 183 to 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The production of single photons has been studiedin the reaction e+e- --> gamma+ invisible particles at centre-of-mass energies of 183~GeV and 189~GeV.A previously published analysis of events with...
Rapidity-rank structure of $p\overline{p}$ pairs in hadronic $Z^0$ decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb, where $M$...
Limits on the masses of supersymmetric particles at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...
A Study of the Lorentz Structure in Tau Decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
This paper describes a measurement of the Michel parameters, $\eta$, $\rho$, $\xi$, $\xi \delta$, and the average $\nu_{\tau}$helicity, $h_{\nu_{\tau}}$, in $\tau$ lepton decays together withthe...
Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for pair production of supersymmetric particlesunder the assumption that $R$--parity is not conserved are presented,based on data recorded by the DELPHI detector in 1998from e$^{+}$e$^{-}$...
Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The data collected by DELPHI in 1998 at the centre-of-mass energy of 189~GeVhave been used to update the search for charginos nearly mass-degenerate withthe lightest supersymmetric particle, which is...
Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An analysis of the data collected in 1997 and 1998 with the DELPHIdetector at $e^+e^-$ collision energies close to 183 and 189GeV was performed in order to extract the hadronic and leptonic...
A Precise Measurement of the $\tau$ Polarisation at LEP-1 (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The $\tau$ polarisation has been studied with the $\eett$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the $\Z$ resonance firstly through the exclusive decay channels...
Search for charginos in $e^+ e^-$ interactions at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
An update of the searches for charginos and gravitinodon a data sample corresponding to the 158 pb$^{-1}$ rIdetector in 1998, at a centre-of-mass energy of 18asignal was found. The lower mass limits...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$has been measured with the data sample collected by DELPHIat an average centre-of-mass energy of 189~GeV andcorresponding to an integrated...
Determination of $\mid V_{ub} \mid/\mid V_{cb} \mid$ with DELPHI at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The ratio of the CKM quark-mixing matrix elements |V_{ub}|/|V_{cb}|has been measured using B hadron semileptonic decays.The analysis is based on a novel technique, recently proposed by theoreticians,...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...
Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and...
Measurement of the $\overline{B} \to D^{(*)}\pi l\overline{\nu}_{l}$ branching fraction (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
$\Lambda_b$ polarization in $Z^{0}$ decays at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The study of the directional dependence of two-particle correlations in the hadronic decays of the $Z^0$ boson is performed using the data collected by the DELPHI experiment in the 1992--1995 running...
Limits on the masses of supersymmetric particles at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A test of the QED process \eeintogg(\fot) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest ener\-gies achieved at LEP, reaching 202 GeV in the...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The study of the directional dependence of two-particle correlations in the hadronic decays of the $Z^0$ boson is performed using the data collected by the DELPHI experiment in the 1992--1995 running...
Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$has been measured with the data sample collected by DELPHIat an average centre-of-mass energy of 189~GeV andcorresponding to an integrated...
Search for charginos in $e^+ e^-$ interactions at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
An update of the searches for charginos and gravitinodon a data sample corresponding to the 158 pb$^{-1}$ rIdetector in 1998, at a centre-of-mass energy of 18asignal was found. The lower mass limits...
Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An analysis of the data collected in 1997 and 1998 with the DELPHIdetector at $e^+e^-$ collision energies close to 183 and 189GeV was performed in order to extract the hadronic and leptonic...
Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The data collected by DELPHI in 1998 at the centre-of-mass energy of 189~GeVhave been used to update the search for charginos nearly mass-degenerate withthe lightest supersymmetric particle, which is...
Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for pair production of supersymmetric particlesunder the assumption that $R$--parity is not conserved are presented,based on data recorded by the DELPHI detector in 1998from e$^{+}$e$^{-}$...
A Study of the Lorentz Structure in Tau Decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
This paper describes a measurement of the Michel parameters, $\eta$, $\rho$, $\xi$, $\xi \delta$, and the average $\nu_{\tau}$helicity, $h_{\nu_{\tau}}$, in $\tau$ lepton decays together withthe...
Rapidity-rank structure of $p\overline{p}$ pairs in hadronic $Z^0$ decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb, where $M$...
Photon Events with Missing Energy at $\sqrt{s}$= 183 to 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The production of single photons has been studiedin the reaction e+e- --> gamma+ invisible particles at centre-of-mass energies of 183~GeV and 189~GeV.A previously published analysis of events with...
Identified Charged Particles and Resonances in Quark and Gluon Jets (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and...
Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for neutral Higgs bosons in the Standard Model and the MSSM havebeen performed using data collected by the DELPHI experiment at acentre-of-mass energy of 188.7 GeV, corresponding toan...
Search for the sgoldstino at $\sqrt{s}$ from 189 to 202 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S$\gamma$ followed by S decay into two gluons or into two photons was studied at 189 -...
Search for supersymmetric partners of top and bottom quarks at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...
$\Lambda_b$ polarization in $Z^{0}$ decays at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Using the data sample of hadronic $Z^0$ decays collected by the DELPHI experiment in the 1992-1995 LEP1 period, the leptonic decay of the charged $B$ mesons (\btauex) has been studied. The analysis...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the...
A Precise Measurement of the $\tau$ Polarisation at LEP-1 (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The $\tau$ polarisation has been studied with the $\eett$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the $\Z$ resonance firstly through the exclusive decay channels...
Determination of $\mid V_{ub} \mid/\mid V_{cb} \mid$ with DELPHI at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The ratio of the CKM quark-mixing matrix elements |V_{ub}|/|V_{cb}|has been measured using B hadron semileptonic decays.The analysis is based on a novel technique, recently proposed by theoreticians,...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...
Measurement of the $\overline{B} \to D^{(*)}\pi l\overline{\nu}_{l}$ branching fraction (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Limits on the masses of supersymmetric particles at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A test of the QED process \eeintogg(\fot) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest ener\-gies achieved at LEP, reaching 202 GeV in the...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The study of the directional dependence of two-particle correlations in the hadronic decays of the $Z^0$ boson is performed using the data collected by the DELPHI experiment in the 1992--1995 running...
Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$has been measured with the data sample collected by DELPHIat an average centre-of-mass energy of 189~GeV andcorresponding to an integrated...
Search for charginos in $e^+ e^-$ interactions at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
An update of the searches for charginos and gravitinodon a data sample corresponding to the 158 pb$^{-1}$ rIdetector in 1998, at a centre-of-mass energy of 18asignal was found. The lower mass limits...
Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An analysis of the data collected in 1997 and 1998 with the DELPHIdetector at $e^+e^-$ collision energies close to 183 and 189GeV was performed in order to extract the hadronic and leptonic...
Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The data collected by DELPHI in 1998 at the centre-of-mass energy of 189~GeVhave been used to update the search for charginos nearly mass-degenerate withthe lightest supersymmetric particle, which is...
Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for pair production of supersymmetric particlesunder the assumption that $R$--parity is not conserved are presented,based on data recorded by the DELPHI detector in 1998from e$^{+}$e$^{-}$...
A Study of the Lorentz Structure in Tau Decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
This paper describes a measurement of the Michel parameters, $\eta$, $\rho$, $\xi$, $\xi \delta$, and the average $\nu_{\tau}$helicity, $h_{\nu_{\tau}}$, in $\tau$ lepton decays together withthe...
Rapidity-rank structure of $p\overline{p}$ pairs in hadronic $Z^0$ decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb, where $M$...
Photon Events with Missing Energy at $\sqrt{s}$= 183 to 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The production of single photons has been studiedin the reaction e+e- --> gamma+ invisible particles at centre-of-mass energies of 183~GeV and 189~GeV.A previously published analysis of events with...
Identified Charged Particles and Resonances in Quark and Gluon Jets (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and...
Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for neutral Higgs bosons in the Standard Model and the MSSM havebeen performed using data collected by the DELPHI experiment at acentre-of-mass energy of 188.7 GeV, corresponding toan...
Search for the sgoldstino at $\sqrt{s}$ from 189 to 202 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S$\gamma$ followed by S decay into two gluons or into two photons was studied at 189 -...
Search for supersymmetric partners of top and bottom quarks at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...
$\Lambda_b$ polarization in $Z^{0}$ decays at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Using the data sample of hadronic $Z^0$ decays collected by the DELPHI experiment in the 1992-1995 LEP1 period, the leptonic decay of the charged $B$ mesons (\btauex) has been studied. The analysis...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the...
A Precise Measurement of the $\tau$ Polarisation at LEP-1 (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The $\tau$ polarisation has been studied with the $\eett$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the $\Z$ resonance firstly through the exclusive decay channels...
Determination of $\mid V_{ub} \mid/\mid V_{cb} \mid$ with DELPHI at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The ratio of the CKM quark-mixing matrix elements |V_{ub}|/|V_{cb}|has been measured using B hadron semileptonic decays.The analysis is based on a novel technique, recently proposed by theoreticians,...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...
Measurement of the $\overline{B} \to D^{(*)}\pi l\overline{\nu}_{l}$ branching fraction (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Nonlinear Matter Wave Dynamics with a Chaotic Potential (1999)
Gardiner, S. A., Jaksch, D., Dum, R., Cirac, J. I., Zoller, P.
We consider the case of a cubic nonlinear Schr\"{o}dinger equation with an additional chaotic potential, in the sense that such a potential produces chaotic dynamics in classical mechanics. We derive...
A precise measurement of the $\tau$ polarisation at LEP-1 (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The $\tau$ polarisation has been studied with the $\eett$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the $\Z$ resonance firstly through the exclusive decay channels...
Entanglement purification of Gaussian continuous variable quantum states (1999)
Duan, Lu-Ming, Giedke, G., Cirac, J. I., Zoller, P.
We describe an entanglement purification protocol to generate maximally entangled states with high efficiencies from two-mode squeezed states or from mixed Gaussian continuous entangled states. The...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
The study of the directional dependence of two-particle correlations in the hadronic decays of the $Z^0$ boson is performed using the data collected by the DELPHI experiment in the 1992--1995 running...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Using the data sample of hadronic $Z^0$ decays collected by the DELPHI experiment in the 1992-1995 LEP1 period, the leptonic decay of the charged $B$ mesons (\btauex) has been studied. The analysis...
Inseparability criterion for continuous variable systems (1999)
Duan, Lu-Ming, Giedke, G., Cirac, J. I., Zoller, P.
An inseparability criterion based on the total variance of a pair of Einstein-Podolsky-Rosen type operators is proposed for continuous variable systems. The criterion provides a sufficient condition...
A detailed quantum kinetic master equation is developed which couples the kinetics of a trapped condensate to the vapor of non-condensed particles. This generalizes previous work which treated the...
Calarco, T., Hinds, E. A., Jaksch, D., Schmiedmayer, J., Cirac, J. I., Zoller, P.
We theoretically study specific schemes for performing a fundamental two-qubit quantum gate via controlled atomic collisions by switching microscopic potentials. In particular we calculate the...
Quantum computing with neutral atoms (1999)
Calarco, T., Jaksch, D., Cirac, J. I., Zoller, P.
We develop a method to entangle neutral atoms using cold controlled collisions. We analyze this method in two particular set-ups: optical lattices and magnetic micro-traps. Both offer the possibility...
Quantum communication with dark photons (1999)
Van Enk, S. J., Kimble, H. J., Cirac, J. I., Zoller, P.
We show that quantum information may be transferred between atoms in different locations by using “phantom” or “dark” photons: the atoms are coupled through electromagnetic fields, but the...
Lambda(b) polarization in Z0 decays at LEP (1999)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Azhinenko, I, ...
Measurement of the anti-B ---> D* pi lepton anti-neutrino(lepton) branching fraction (1999)
DELPHI Collaboration, Abreu, P, Adam, W, Adye, T, Adzic, P, Azhinenko, I, ...
Laser Cooling of two trapped ions: Sideband cooling beyond the Lamb-Dicke limit (1998)
Morigi, G., Eschner, J., Cirac, J. I., Zoller, P.
We study laser cooling of two ions that are trapped in a harmonic potential and interact by Coulomb repulsion. Sideband cooling in the Lamb-Dicke regime is shown to work analogously to sideband...
Spin monopoles with Bose-Einstein condenstates (1998)
Garcia-Ripoll, J. J., Cirac, J. I., Anglin, J., Perez-Garcia, V., Zoller, P.
We study the feasibility of preparing a Bose-Einstein condensed sample of atoms in a 2D spin monopole. In this state, the atomic internal spins lie in the x-y plane, and point in the radial direction.
Entanglement of atoms via cold controlled collisions (1998)
Jaksch, D., Cirac, J. I., Gardiner, C. W., Zoller, P.
We show that by using cold controlled collisions between two atoms one can achieve conditional dynamics in moving trap potentials. We discuss implementing two qubit quantum--gates and efficient...
Creation of entangled states of distant atoms by interference (1998)
Cabrillo, C., Cirac, J. I., Garcia-Fernandez, P., Zoller, P.
We propose a scheme to create distant entangled atomic states. It is based on driving two (or more) atoms with a weak laser pulse, so that the probability that two atoms are excited is negligible. If...
Lower Bounds for Attainable Fidelity in Entanglement Purification (1998)
Giedke, G., Briegel, H., Cirac, J. I., Zoller, P.
We derive lower bounds for the attainable fidelity of standard entanglement purification protocols when local operations and measurements are subjected to errors. We introduce an error parameter...
Quantum repeaters based on entanglement purification (1998)
Dür, W., Cirac, J. I., Zoller, P.
We study the use of entanglement purification for quantum communication over long distances. For distances much longer than the coherence length of a corresponding noisy quantum channel, the fidelity...
Quantum Kinetic Theory of Condensate Growth---Comparison of Experiment and Theory (1998)
Gardiner, C. W., Lee, M. D., Ballagh, R. J., Davis, M. J., Zoller, P.
In a major extension of our previous model (C.W. Gardiner, P. Zoller, R.J. Ballagh and M.J. Davis, Phys. Rev. Lett. 79, 1793 (1997)) of condensate growth, we take account of the evolution of the...
Cold bosonic atoms in optical lattices (1998)
Jaksch, D., Bruder, C., Cirac, J. I., Gardiner, C. W., Zoller, P.
The dynamics of an ultracold dilute gas of bosonic atoms in an optical lattice can be described by a Bose-Hubbard model where the system parameters are controlled by laser light. We study the...
Inhibition of spontaneous emission in Fermi gases (1998)
Busch, Th., Anglin, J. R., Cirac, J. I., Zoller, P.
Fermi inhibition is a quantum statistical analogue for the inhibition of spontaneous emission by an excited atom in a cavity. This is achieved when the relevant motional states are already occupied...
Quantum Communication with Phantom Photons (1998)
Van Enk, S. J., Kimble, H. J., Cirac, J. I., Zoller, P.
We show that quantum information may be transferred between atoms in different locations by using ``phantom photons'': the atoms are coupled through electromagnetic fields, but the corresponding...
Quantum repeaters for communication (1998)
Dür, W., Cirac, J. I., Zoller, P.
In quantum communication via noisy channels, the error probability scales exponentially with the length of the channel. We present a scheme of a quantum repeater that overcomes this limitation. The...
Entanglement engineering of one-photon wavepackets using a single-atom source (1998)
Gheri, K. M., Saavedra, C., Toermae, P., Cirac, J. I., Zoller, P.
We propose a cavity-QED scheme for the controlled generation of sequences of entangled single-photon wavepackets. A photon is created inside a cavity via an active medium, such as an atom, and decays...
Role of quasiparticles in the growth of a trapped Bose-Einstein condensate (1998)
Gardiner, C. W., Lee, M. D., Ballagh, R. J., Davis, M. J., Zoller, P.
A major extension of the model of condensate growth introduced by us is made to take account of the evolution of the occupations of lower trap levels (quasiparticles) by scattering processes, and of...
Jaksch, D., Gardiner, C. W., Gheri, K. M., Zoller, P.
We use the quantum kinetic theory to calculate the steady state and the fluctuations of a trapped Bose-Einstein condensate at finite temperature. The system is divided in a condensate and a...
Dür, W., Van Enk, S. J., Cirac, J. I., Zoller, P.
We show how to create maximally entangled EPR pairs between spatially distant atoms, each of them inside a high-Q optical cavity, by sending photons through a general, noisy channel, such as a...
Quantum gates with "hot" trapped ions (1997)
Poyatos, J. F., Cirac, J. I., Zoller, P.
We propose a scheme to perform a fundamental two-qubit gate between two trapped ions using ideas from atom interferometry. As opposed to the scheme considered by J. I. Cirac and P. Zoller, Phys. Rev....
We extend quantum kinetic theory to deal with a strongly Bose-condensed atomic vapor in a trap. The method assumes that the majority of the vapor is not condensed, and acts as a bath of heat and...
Creation of Dark Solitons and Vortices in Bose-Einstein Condensates (1997)
Dum, R., Cirac, J. I., Lewenstein, M., Zoller, P.
We propose and analyze a scheme to create dark solitons and vortices in Bose-Einstein condensates. This is achieved starting from a condensate in the internal state $|a>$ and transferring the atoms...
Laser cooling of single trapped atoms to the ground state: a dark state in position space (1997)
Morigi, G., Cirac, J. I., Ellinger, K., Zoller, P.
We propose a scheme that allows to laser cool trapped atoms to the ground state of a one-dimensional confining potential. The scheme is based on the creation of a dark state by designing the laser...
Purifying two-bit quantum gates and joint measurements in cavity QED (1997)
Van Enk, S. J., Cirac, J. I., Zoller, P.
Using a cavity QED setup we show how to implement a particular joint measurement on two atoms in a fault tolerant way. Based on this scheme, we illustrate how to realize quantum communication over a...
Quantum chaos in an ion trap: the delta-kicked harmonic oscillator (1997)
Gardiner, S. A., Cirac, J. I., Zoller, P.
We propose an experimental configuration, within an ion trap, by which a quantum mechanical delta-kicked harmonic oscillator could be realized, and investigated. We show how to directly measure the...
Kinetics of Bose-Einstein Condensation in a Trap (1997)
Gardiner, C. W., Zoller, P., Ballagh, R. J., Davis, M. J.
The formation process of a Bose-Einstein condensate in a trap is described using a master equation based on quantum kinetic theory, which can be well approximated by a description using only the...
Mimicking a Squeezed Bath Interaction: Quantum Reservoir Engineering with Atoms (1997)
Lütkenhaus, N., Cirac, J. I., Zoller, P.
The interaction of an atomic two-level system and a squeezed vacuum leads to interesting novel effects in atomic dynamics, including line narrowing in resonance fluorescence and absorption spectra,...
Quantum Superposition States of Bose-Einstein Condensates (1997)
Cirac, J. I., Lewenstein, M., Moelmer, K., Zoller, P.
We propose a scheme to create a macroscopic ``Sch\"odinger cat'' state formed by two interacting Bose condensates. In analogy with quantum optics, where the control and engineering of quantum states...
Ground State Laser Cooling Beyond the Lamb-Dicke Limit (1997)
Morigi, G., Cirac, J. I., Lewenstein, M., Zoller, P.
We propose a laser cooling scheme that allows to cool a single atom confined in a harmonic potential to the trap ground state $|0>$. The scheme assumes strong confinement, where the oscillation...
Stability and collective excitations of a two-component Bose-condensed gas: a moment approach (1997)
Busch, Th., Cirac, J. I., Perez-Garcia, V. M., Zoller, P.
The dynamics of a two-component dilute Bose gas of atoms at zero temperature is described in the mean field approximation by a two-component Gross-Pitaevskii Equation. We solve this equation assuming...
Quantum State Transfer and Entanglement Distribution among Distant Nodes in a Quantum Network (1997)
Cirac, J. I., Zoller, P., Kimble, H. J., Mabuchi, H.
We propose a scheme to utilize photons for ideal quantum transmission between atoms located at spatially separated nodes of a quantum network. The transmission protocol employs special laser pulses...
Ideal Quantum Communication over Noisy Channels: a Quantum Optical Implementation (1997)
Van Enk, S. J., Cirac, J. I., Zoller, P.
We consider transmission of an (unknown) quantum state between two distant atoms via photons. Based on a quantum-optical realistic model, we define a noisy quantum channel which includes systematic...
Quantum Kinetic Theory III: Simulation of the Quantum Boltzmann Master Equation (1997)
Jaksch, D., Gardiner, C. W., Zoller, P.
We present results of simulations of a em quantum Boltzmann master equation (QBME) describing the kinetics of a dilute Bose gas confined in a trapping potential in the regime of Bose condensation....
Object-Oriented Design of a Database Engine for Multidimensional Discrete Data (1997)
P. Furtado, R. Ritsch, N. Widmann, P. Zoller, P. Baumann
Multidimensional discrete data (MDD), i.e. arrays of arbitrary size, dimension and base type, occur in a variety of application fields. The object-oriented DBMS RasDaMan 2 provides domain-independent...
Anomalous Diffusion and Levy-walks in optical lattices (1997)
S. Marksteiner, K. Ellinger, P. Zoller
We study theoretically the spatial diusion (transport) of two-level atoms in one- and two-dimensional optical molasses derived from counterpropagating laser beams. We use both Quantum Monte-Carlo and...
Enforcing Coherent Evolution in Dissipative Quantum Dynamics (1997)
J. I. Cirac, T. Pellizzari, P. Zoller
The major obstacle to the preparation and manipulation of many-particle entangled states is decoherence due to the coupling of the system to the environment. A scheme to correct for the effects of...
A Quantum Kinetic Master Equation (QKME) for bosonic atoms is formulated. It is a quantum stochastic equation for the kinetics of a dilute quantum Bose gas, and describes the behavior and formation...
An all-optical gray lattice for atoms (1996)
Stecher, H., Ritsch, H., Zoller, P., Sander, F., Esslinger, T., Hansch, T. W.
We create a gray optical lattice structure using a blue detuned laser field coupling an atomic ground state of angular momentum J simultaneously to two excited states with angular momenta J and J-1....
Quantum state transfer and entanglement distribution among distant nodes in a quantum network (1996)
Cirac, J. I., Zoller, P., Kimble, H. J., Mabuchi, H.
We propose a scheme to utilize photons for ideal quantum transmission between atoms located at spatially-separated nodes of a quantum network. The transmission protocol employs special laser pulses...
Complete Characterization of a Quantum Process: the Two-Bit Quantum Gate (1996)
Poyatos, J. F., Cirac, J. I., Zoller, P.
We show how to fully characterize a quantum process in an open quantum system. We particularize the procedure to the case of a universal two-qubit gate in a quantum computer. We illustrate the method...
A magnetic tomography of a cavity state (1996)
Walser, R., Cirac, J. I., Zoller, P.
A method to determine the state of a single quantized cavity mode is proposed. By adiabatic passage, the quantum state of the field is transfered completely onto an internal Zeeman sub-manifold of an...
Measurement of Arbitrary Observables of a Trapped Ion (1996)
Gardiner, S. A., Cirac, J. I., Zoller, P.
We describe a method to perform a single quantum measurement of an arbitrary observable of a single ion moving in a harmonic potential. We illustrate the measurement procedure with explicit examples,...
Continuous Observation of Interference Fringes from Bose Condensates (1996)
Cirac, J. I., Gardiner, C. W., Naraschewski, M., Zoller, P.
We use continuous measurement theory to describe the evolution of two Bose condensates in an interference experiment. It is shown how the system evolves in a single run of the experiment into a state...
Interference of Bose condensates (1996)
Naraschewski, M., Wallis, H., Schenzle, A., Cirac, J. I., Zoller, P.
We investigate the prospects of atomic interference using samples of Bose condensed atoms. First we show the ability of two independent Bose condensates to create an interference pattern, even if...
Inversion of quantum jumps in quantum optical systems under continuous observation (1996)
We formulate conditions for invertibility of quantum jumps in systems that decay by emission of quanta into a continuously monitored reservoir. We propose proof-of-principle experiments using...
Quantum Reservoir Engineering (1996)
Poyatos, J. F., Cirac, J. I., Zoller, P.
We show how to design different couplings between a single ion trapped in a harmonic potential and an environment. This will provide the basis for the experimental study of the process of decoherence...
Motion Tomography of a single trapped ion (1996)
Poyatos, J. F., Walser, R., Cirac, J. I., Zoller, P., Blatt, R.
A method for the experimental reconstruction of the quantum state of motion for a single trapped ion is proposed. It is based on the measurement of the ground state population of the trap after a...
Synthesis Of Entangled Atomic States And Quantum Computation (1996)
Quantum Computation, T. Pellizzari, S. A. Gardiner, P. Zoller, J. I. Cirac
INTRODUCTION The preparation and coherent manipulation of N{atom entangled states is fundamental to realizing a quantum computer [1], is the basis of tests of quantum mechanics vs. local...