Nematic Fermi Fluids in Condensed Matter Physics (2009)
Fradkin, Eduardo, Kivelson, Steven A., Lawler, Michael J., Eisenstein, James P., Mackenzie, Andrew P.
Correlated electron fluids can exhibit a startling array of complex phases, among which one of the more surprising is the electron nematic, a translationally invariant metallic phase with a...
Local Interlayer Tunneling Between Two-Dimensional Electron Systems in the Ballistic Regime (2009)
Luna, Katherine, Kim, Eun-Ah, Oreto, Paul, Kivelson, Steven A., Goldhaber-Gordon, David
We study a theoretical model of virtual scanning tunneling microscopy (VSTM), a proposed application of interlayer tunneling in a bilayer system to locally probe two-dimensional electron systems...
Sun, Kai, Yao, Hong, Fradkin, Eduardo, Kivelson, Steven A.
We investigate the stability of a quadratic band-crossing point (QBCP) in 2D fermionic systems. At the non-interacting level, we show that a QBCP exists and is topologically stable for a Berry flux...
Striped superconductors: How the cuprates intertwine spin, charge and superconducting orders (2009)
Berg, Erez, Fradkin, Eduardo, Kivelson, Steven A., Tranquada, John
Recent transport experiments in the original cuprate high temperature superconductor, {La$_{2-x}$Ba$_x$CuO$_4$}, have revealed a remarkable sequence of transitions and crossovers which give rise to a...
Fe-based superconductors: unity or diversity? (2008)
Kivelson, Steven A., Yao, Hong
Does the high temperature superconductivity observed in the newly discovered iron-pnictide materials represent another example of the same essential physics responsible for superconductivity in the...
Algebraic spin liquid in an exactly solvable spin model (2008)
Yao, Hong, Zhang, Shou-Cheng, Kivelson, Steven A.
We have proposed an exactly solvable quantum spin-3/2 model on a square lattice. Its ground state is a quantum spin liquid with a half integer spin per unit cell. The fermionic excitations are...
Theory of the striped superconductor (2008)
Berg, Erez, Fradkin, Eduardo, Kivelson, Steven A.
We define a distinct phase of matter, a "pair density wave" (PDW), in which the superconducting order parameter $\phi$ varies periodically as a function of position such that when averaged over the...
Theory of Electron Nematic Order in LaOFeAs (2008)
Fang, Chen, Yao, Hong, Tsai, Wei-Feng, Hu, JiangPing, Kivelson, Steven A.
We study a spin $S$ quantum Heisenberg model on the Fe lattice of the rare-earth oxypnictide superconductors. Using both large $S$ and large $N$ methods, we show that this model exhibits a sequence...
The Optimal Inhomogeneity for Superconductivity: Finite Size Studies (2008)
Tsai, Wei-Feng, Yao, Hong, Laeuchli, Andreas, Kivelson, Steven A.
We report the results of exact diagonalization studies of Hubbard models on a $4\times 4$ square lattice with periodic boundary conditions and various degrees and patterns of inhomogeneity, which are...
Superconductivity in zigzag CuO chains (2007)
Berg, Erez, Geballe, Theodore H., Kivelson, Steven A.
Superconductivity has recently been discovered in Pr$_{2}$Ba$_{4}$Cu$_{7}$O$_{15-\delta}$ with a maximum $T_c$ of about 15K. Since the CuO planes in this material are believed to be insulating, it...
An exact chiral spin liquid with non-Abelian anyons (2007)
Yao, Hong, Kivelson, Steven A.
We establish the existence of a chiral spin liquid (CSL) as the exact ground state of the Kitaev model on a decorated honeycomb lattice, which is obtained by replacing each site in the familiar...
Myriad phases of the Checkerboard Hubbard Model (2007)
Yao, Hong, Tsai, Wei-Feng, Kivelson, Steven A.
The zero temperature phase diagram of the checkerboard Hubbard model is obtained in the solvable limit in which it consists of weakly coupled square plaquettes. As a function of the on-site Coulomb...
Theory of the nodal nematic quantum phase transition in superconductors (2007)
Kim, Eun-Ah, Lawler, Michael J., Oreto, Paul, Sachdev, Subir, Fradkin, Eduardo, Kivelson, Steven A.
We study the character of an Ising nematic quantum phase transition (QPT) deep inside a d-wave superconducting state with nodal quasiparticles in a two-dimensional tetragonal crystal. We find that,...
Dynamical layer decoupling in a stripe-ordered, high T_c superconductor (2007)
Berg, Erez, Fradkin, Eduardo, Kim, Eun-Ah, Kivelson, Steven A., Oganesyan, Vadim, Tranquada, John, ...
In the stripe-ordered state of a strongly-correlated two-dimensional electronic system, under a set of special circumstances, the superconducting condensate, like the magnetic order, can occur at a...
On the absence of ferromagnetism in typical 2D ferromagnets (2006)
Biskup, Marek, Chayes, Lincoln, Kivelson, Steven A.
We consider the Ising systems in $d$ dimensions with nearest-neighbor ferromagnetic interactions and long-range repulsive (antiferromagnetic) interactions which decay with a power, $s$, of the...
Theory of stripes in quasi two dimensional rare-earth tritellurides (2006)
Yao, Hong, Robertson, John A., Kim, Eun-Ah, Kivelson, Steven A.
Even though the rare-earth tritellurides are tetragonal materials with a quasi two dimensional (2D) band structure, they have a "hidden" 1D character. The resultant near-perfect nesting of the Fermi...
Distinguishing Patterns of Charge Order: Stripes or Checkerboards (2006)
Robertson, John A., Kivelson, Steven A., Fradkin, Eduardo, Fang, Alan C., Kapitulnik, Aharon
In two dimensions, quenched disorder always rounds transitions involving the breaking of spatial symmetries so, in practice, it can often be difficult to infer what form the symmetry breaking would...
Superconductivity in Inhomogeneous Hubbard Models (2006)
Tsai, Wei-Feng, Kivelson, Steven A.
We present a controlled perturbative approach to the low temperature phase diagram of highly inhomogeneous Hubbard models in the limit of small coupling, $t'$, between clusters. We apply this to the...
How optimal inhomogeneity produces high temperature superconductivity (2005)
Kivelson, Steven A., Fradkin, Eduardo
Before Vic Emery's untimely death, we had the privilege of working closely with him on the role of Coulomb frustrated phase separation in doped Mott insulators, and on the consequences of the...
Disorder induced non-Fermi liquid near a metal-superconductor quantum phase transition (2005)
Vafek, Oskar, Beasley, M. R., Kivelson, Steven A.
We study the flux-driven superconductor-metal transition in ultrasmall cylinders observed experimentally by Liu {\em et.al.}(Science 294, 2332 (2001)). Where $T_c\to 0$, there is a quantum critical...
Enhancement of superconductivity by local inhomogeneity (2005)
Martin, Ivar, Podolsky, Daniel, Kivelson, Steven A.
We study the effect of inhomogeneity of the paring interaction or the background potential on the superconducting transition temperature, T_c. In the weak coupling BCS regime, we find that...
Surface pinning of fluctuating charge order: an "extraordinary" surface phase transition (2005)
Brown, Stuart E., Fradkin, Eduardo, Kivelson, Steven A.
We study the mean-field theory of charge-density wave (CDW) order in a layered system, including the effect of the long-range Coulomb interaction and of screening by uncondensed electrons. We...
Quasiparticle scattering and local density of states in graphite (2004)
Bena, Cristina, Kivelson, Steven A.
We determine the effect of quasiparticle interference on the spatial variations of the local density of states (LDOS) in graphite in the neighborhood of an isolated impurity. A number of...
Drag resistance of 2D electronic microemulsions (2004)
Spivak, Boris, Kivelson, Steven A.
Motivated by recent experiments of Pillarisetty {\it et al}, \prl {\bf 90}, 226801 (2003), we present a theory of drag in electronic double layers at low electron concentration. We show that the drag...
Bindloss, Ian P., Kivelson, Steven A.
We compute the finite-temperature single-particle spectral function of a one-dimensional Luttinger liquid coupled to an optical phonon band. The calculation is performed exactly for the case in which...
S.A.: Order by disorder, without order, in a two-dimensional spin system with O(2)-symmetry (2004)
Marek Biskup, Lincoln Chayes, Steven A. Kivelson
Abstract. We present a rigorous proof of an ordering transition for a two-component two-dimensional antiferromagnet with nearest and next-nearest neighbor interactions. The low-temperature phase...
Order by disorder, without order, in a two-dimensional spin system with O(2) symmetry (2003)
Biskup, Marek, Chayes, Lincoln, Kivelson, Steven A.
We present a rigorous proof of an ordering transition for a two-component two-dimensional antiferromagnet with nearest and next-nearest neighbor interactions. The low-temperature phase contains two...
Incipient order in the t-J model at high temperatures (2003)
Pryadko, Leonid P., Kivelson, Steven A., Zachar, Oron
We analyze the high-temperature behavior of the susceptibilities towards a number of possible ordered states in the t-J-V model using the high-temperature series expansion. From all diagrams with up...
Quasi-1D dynamics and nematic phases in the 2D Emery model (2003)
Kivelson, Steven A., Fradkin, Eduardo, Geballe, Theodore
We consider the Emery model of a Cu-O plane of the high temperature superconductors. We show that in a strong-coupling limit, with strong Coulomb repulsions between electrons on nearest-neighbor O...
The types of Mott insulator (2002)
Lee, Dung-Hai, Kivelson, Steven A.
There are two classes of Mott insulators in nature, distinguished by their responses to weak doping. With increasing chemical potential, Type I Mott insulators undergo a first order phase transition...
Competing Order in the Mixed State of High Temperature Superconductors (2002)
Kivelson, Steven A., Lee, Dung-Hai, Fradkin, Eduardo, Oganesyan, Vadim
We examine the low temperature behavior of the mixed state of a layered superconductor in the vicinity of a quantum critical point separating a pure superconducting phase from a phase in which a...
What the resonance peak cannot do (2001)
Kee, Hae-Young, Kivelson, Steven A., Aeppli, G.
In certain cuprates, a spin 1 resonance mode is prominent in the magnetic structure measured by neutron scattering. It has been proposed that this mode is responsible for significant features seen in...
Barci, Daniel G., Fradkin, Eduardo, Kivelson, Steven A., Oganesyan, Vadim
We develop an effective low energy theory of the Quantum Hall (QH) Smectic or stripe phase of a two-dimensional electron gas in a large magnetic field in terms of its Goldstone modes and of the...
Thermodynamics of the interplay between magnetism and high-temperature superconductivity (2001)
Kivelson, Steven A., Aeppli, G., Emery, Victor J.
The copper-oxide based high temperature superconductors have complex phase diagrams with multiple ordered phases. It even appears that the highest superconducting transition temperatures for certain...
Electronic Mechanism of Superconductivity in the Cuprates, C$_{60}$, and Polyacenes (2000)
Chakravarty, Sudip, Kivelson, Steven A.
On the basis of an analysis of theoretical and numerical studies of model systems, and of experiments on superconductivity in doped C$_{60}$, polyacenes, and the cuprate high temperature...
Effects of dissipation on quantum phase transitions (2000)
Kapitulnik, Aharon, Mason, Nadya, Kivelson, Steven A., Chakravarty, Sudip
We discuss the effect of dissipation on quantum phase transitions. In particular we concentrate on the Superconductor to Insulator and Quantum-Hall to Insulator transitions. By invoking a...
Quantum Theory of the Smectic Metal State in Stripe Phases (2000)
Emery, Victor J., Fradkin, Eduardo, Kivelson, Steven A., Lubensky, Tom C.
We present a theory of the electron smectic fixed point of the stripe phases of doped layered Mott insulators. We show that in the presence of a spin gap three phases generally arise: (a) a smectic...
Nematic phase of the two-dimensional electron gas in a magnetic field (1999)
Fradkin, Eduardo, Kivelson, Steven A., Manousakis, Efstratios, Nho, Kwangsik
The two dimensional electron gas (2DEG) in moderate magnetic fields in ultra-clean AlAs-GaAs heterojunctions exhibits transport anomalies suggestive of a compressible, anisotropic metallic state....
Topological doping and the stability of stripe phases (1999)
Pryadko, Leonid P., Kivelson, Steven A., Emery, V. J., Bazaliy, Yaroslaw B., Demler, Eugene A.
We analyze the properties of a general Ginzburg-Landau free energy with competing order parameters, long-range interactions, and global constraints (e.g., a fixed value of a total ``charge'') to...
Liquid Crystal Phases of Quantum Hall Systems (1998)
Fradkin, Eduardo, Kivelson, Steven A.
Mean-field calculations for the two dimensional electron gas (2DEG) in a large magnetic field with a partially filled Landau level with index $N\geq 2$ consistently yield ``stripe-ordered''...
Avoided Critical Behavior in O(n) Systems (1998)
Nussinov, Zohar, Rudnick, Joseph, Kivelson, Steven A., Chayes, L. N.
Long-range frustrating interactions, even if their strength is infinitesimal, can give rise to a dramatic proliferations of ground or near-ground states. As a consequence, the ordering temperature...
Thermodynamics of the interplay between magnetism and high-temperature superconductivity
Kivelson, Steven A., Aeppli, G., Emery, Victor J.
Copper–oxide-based high-temperature superconductors have complex phase diagrams with multiple ordered phases. It even appears that the highest superconducting transition temperatures for certain...
Thermodynamics of the interplay between magnetism and high-temperature superconductivity
Kivelson, Steven A., Aeppli, G., Emery, Victor J.
Copper–oxide-based high-temperature superconductors have complex phase diagrams with multiple ordered phases. It even appears that the highest superconducting transition temperatures for certain...
Studies of the electronic properties of localized states in disordered insulators /
Thesis (Ph. D.)--Harvard University, 1979.