147 citations · 833 across the 23 of their papers we have counts for
22 papers
Semi-localized ground state in a 1D system with long-range hopping
Murod S. Bahovadinov, Faridun N. Jalolov, Vladimir E. Kravtsov +2
We study the localization of a quantum particle in a one-dimensional disordered system with long-range hopping amplitudes . In contrast to the standard one-dime…
Semi-fractality and localization on a chiral Cayley tree
Carlo Vanoni, Vladimir E. Kravtsov, Boris L. Altshuler
We study a quantum particle hopping on an infinite Cayley tree with nearest-neighbor hopping amplitudes drawn from a distribution singular as near weak links and no on-s…
Information Compression at Criticality
Simon Jiricek, Miroslav Hopjan, Boris Altshuler +2
Highly excited quantum states at the critical boundary of ergodicity are known to deviate from thermal behavior, yet their dynamical properties remain poorly understood. Here, we u…
Stability Analysis of Superconductivity in -LaScH and its Experimental Reproducibility from La-Sc Alloys
Dmitrii V. Semenok, Ivan A. Troyan, Zhongyan Wu +4
In this work, we analyze the feasibility of room-temperature superconductivity in the lanthanum-scandium hydride -LaScH. We demonstrate that the electro…
Effective delocalization in the one-dimensional Anderson model with stealthy disorder
Carlo Vanoni, Jonas Karcher, Mikael C. Rechtsman +3
We study analytically and numerically the Anderson model in one dimension with "stealthy" disorder, defined as having a power spectrum that vanishes in a continuous band of wave nu…
Universal Relation between Spectral and Wavefunction Properties at Criticality
Simon Jiricek, Miroslav Hopjan, Vladimir Kravtsov +2
Quantum-chaotic systems exhibit several universal properties, ranging from level repulsion in the energy spectrum to wavefunction delocalization. On the other hand, if wavefunction…
Trotter transition in BCS pairing dynamics
Aniket Patra, Emil A. Yuzbashyan, Boris L. Altshuler +1
We study universal aspects of thermalization induced by Trotterization, a procedure routinely used in gate-based quantum computation. We use the reduced-BCS model -- quantum integr…
Instability of metals with respect to strong electron-phonon interaction
Emil A. Yuzbashyan, Boris L. Altshuler, Aniket Patra
We show that thermal equilibrium between conduction electrons and phonons becomes kinetically unstable when the renormalized electron-phonon coupling exceeds a certain threshold. W…
Bounds on in the Eliashberg theory of Superconductivity. III: Einstein phonons
Michael K. -H. Kiessling, Boris L. Altshuler, Emil A. Yuzbashyan
The dispersionless limit of the standard Eliashberg theory of superconductivity is studied. The effective electron-electron interactions are mediated by Einstein phonons of frequen…
Bounds on in the Eliashberg theory of Superconductivity. I: The -model
Michael K. -H. Kiessling, Boris L. Altshuler, Emil A. Yuzbashyan
Using the recent reformulation for the Eliashberg theory of superconductivity in terms of a classical interacting Bloch spin chain model, rigorous upper and lower bounds on the cri…
Bounds on in the Eliashberg theory of Superconductivity. II: Dispersive phonons
Michael K. -H. Kiessling, Boris L. Altshuler, Emil A. Yuzbashyan
The standard Eliashberg theory of superconductivity is studied, in which the effective electron-electron interactions are mediated by generally dispersive phonons, with Eliashberg…
Non-ergodic delocalized phase in Anderson model on Bethe lattice and regular graph
V. E. Kravtsov, B. L. Altshuler, L. B. Ioffe
We develop a novel analytical approach to the problem of single particle localization in infinite dimensional spaces such as Bethe lattice and random regular graphs. The key ingred…
Multifractal metal in a disordered Josephson Junction Array
M. Pino, V. E. Kravtsov, B. L. Altshuler +1
We report the results of the numerical study of the non-dissipative quantum Josephson junction chain with the focus on the statistics of many-body wave functions and local energy s…
Non-ergodic phases in strongly disordered random regular graphs
B. L. Altshuler, E. Cuevas, L. B. Ioffe +1
We combine numerical diagonalization with a semi-analytical calculations to prove the existence of the intermediate non-ergodic but delocalized phase in the Anderson model on disor…
Quantum Levy flights and multifractality of dipolar excitations in a random system
X. Deng, B. L. Altshuler, G. V. Shlyapnikov +1
We consider dipolar excitations propagating via dipole-induced exchange among immobile molecules randomly spaced in a lattice. The character of the propagation is determined by lon…
Radiative coupling and weak lasing of exciton-polariton condensates
I. L. Aleiner, B. L. Altshuler, Y. G. Rubo
In spite of having finite life-time exciton-polaritons in microcavities are known to condense at strong enough pumping of the reservoir. We present an analytical theory of such Bos…
Decoherence of charge qubit coupled to interacting background charges
I. V. Yurkevich, J. Baldwin, I. V. Lerner +1
The major contribution to decoherence of a double quantum dot or a Josephson junction charge qubit comes from the electrostatic coupling to fluctuating background charges hybridize…
dc Conductivity of an array of Josephson junctions in the insulating state
S. V. Syzranov, K. B. Efetov, B. L. Altshuler
We consider microscopically low-temperature transport in weakly disordered arrays of Josephson junctions in the Coulomb blockade regime. We demonstrate that at sufficiently low tem…
The breakdown of the Nagaoka phase in the 2D t-J model
E. Eisenberg, R. Berkovits, D. A. Huse +1
In the limit of weak exchange, J, at low hole concentration, the ground state of the 2D t-J model is believed to be ferromagnetic. We study the leading instability of this Nagaoka…
Quantum transport in parallel magnetic fields: A realization of the Berry-Robnik symmetry phenomenon
Julia S. Meyer, Alexander Altland, B. L. Altshuler
We analyze the magnetoconductance of two-dimensional electron and hole gases (2DEGs) subject to a parallel magnetic field. It is shown that, for confining potential wells which are…
Kondo Temperature for the Two-Channel Kondo Models of Tunneling Centers
I. L. Aleiner, B. L. Altshuler, Y. M. Galperin +1
The possibility for a two-channel Kondo () non Fermi liquid state to appear in a metal as a result of the interaction between electrons and movable structural defects is revis…
Mesoscopic Fluctuations of Adiabatic Charge Pumping in Quantum Dots
T. A. Shutenko, I. L. Aleiner, B. L. Altshuler
We consider the adiabatic charge transport through zero-dimensional mesoscopic sample (quantum dot) caused by two periodically changing external perturbations. Both the magnitude a…