A simple, robust, and scalable quantum logic gate with quantum dot cavity QED systems (2009)
We present a method to enact a deterministic, measurement-free, optically generated controlled-phase gate on two qubits defined by single electrons trapped in large-area quantum dots in a planar...
Yang, A., Steger, M., Sekiguchi, T., Thewalt, M. L. W., Ladd, T. D., Itoh, K. M., ...
We demonstrate a method which can hyperpolarize both the electron and nuclear spins of 31P donors in Si at low field, where both would be essentially unpolarized in equilibrium. It is based on the...
Hybrid quantum computation in quantum optics (2008)
Van Loock, P., Munro, W. J., Nemoto, Kae, Spiller, T. P., Ladd, T. D., Braunstein, Samuel L., ...
We propose a hybrid quantum computing scheme where qubit degrees of freedom for computation are combined with quantum continuous variables for communication. In particular, universal two-qubit gates...
Lasing of donor-bound excitons in ZnSe microdisks (2007)
Pawlis, A., Panfilova, M., As, D. J., Lischka, K., Sanaka, K., Ladd, T. D., ...
Excitons bound to flourine atoms in ZnSe have the potential for several quantum optical applications. Examples include optically accessible quantum memories for quantum information processing and...
Hybrid Quantum Computation in Quantum Optics (2007)
Van Loock, P., Munro, W. J., Nemoto, Kae, Spiller, T. P., Ladd, T. D., Braunstein, Samuel L., ...
We propose a hybrid quantum computing scheme where qubit degrees of freedom for computation are combined with quantum continuous variables for communication. In particular, universal two-qubit gates...
Hybrid quantum repeater using bright coherent light (2005)
Van Loock, P., Ladd, T. D., Sanaka, K., Yamaguchi, F., Nemoto, Kae, Munro, W. J., ...
We describe a quantum repeater protocol for long-distance quantum communication. In this scheme, entanglement is created between qubits at intermediate stations of the channel by using a weak...
Coherence Time of a Solid-State Nuclear Qubit (2003)
Ladd, T. D., Maryenko, D., Abe, E., Itoh, K. M., Yamamoto, Y.
We report NMR experiments using high-power, RF decoupling techniques to show that a 29-Si nuclear spin qubit in a solid silicon crystal at room temperature can preserve quantum phase for 10^9...
Optical Detection of a Single Nuclear Spin (2003)
Fu, K-M. C., Ladd, T. D., Santori, C., Yamamoto, Y.
We propose a method to optically detect the spin state of a 31-P nucleus embedded in a 28-Si matrix. The nuclear-electron hyperfine splitting of the 31-P neutral-donor ground state can be resolved...
An all silicon quantum computer (2001)
Ladd, T. D., Goldman, J. R., Yamaguchi, F., Yamamoto, Y., Abe, E., Itoh, K. M.
A solid-state implementation of a quantum computer composed entirely of silicon is proposed. Qubits are Si-29 nuclear spins arranged as chains in a Si-28 (spin-0) matrix with Larmor frequencies...
Quantum computation in a one-dimensional crystal lattice with NMR force microscopy (2000)
Ladd, T. D., Goldman, J. R., Dana, A., Yamaguchi, F., Yamamoto, Y.
A proposal for a scalable, solid-state implementation of a quantum computer is presented. Qubits are fluorine nuclear spins in a solid crystal of fluorapatite [Ca_5 F(PO_4)_3] with resonant...