339 citations · 2.7k across the 74 of their papers we have counts for
7 papers · 1 filter
Rare thermal bubbles at the many-body localization transition from the Fock space point of view
Giuseppe De Tomasi, Ivan M. Khaymovich, Frank Pollmann +1
In this work we study the many-body localization (MBL) transition and relate it to the eigenstate structure in the Fock space. Besides the standard entanglement and multifractal pr…
Entanglement of midspectrum eigenstates of chaotic many-body systems: Reasons for deviation from random ensembles
Masudul Haque, Paul A. McClarty, Ivan M. Khaymovich
Eigenstates of local many-body interacting systems that are far from spectral edges are thought to be ergodic and close to being random states. This is consistent with the eigensta…
Fragile ergodic phases in logarithmically-normal Rosenzweig-Porter model
I. M. Khaymovich, V. E. Kravtsov, B. L. Altshuler +1
In this paper we suggest an extension of the Rosenzweig-Porter (RP) model, the LN-RP model, in which the off-diagonal matrix elements have a wide, log-normal distribution. We argue…
Localization transition on the Random Regular Graph as an unstable tricritical point in a log-normal Rosenzweig-Porter random matrix ensemble
V. E. Kravtsov, I. M. Khaymovich, B. L. Altshuler +1
Gaussian Rosenzweig-Porter (GRP) random matrix ensemble is the only one in which the robust multifractal phase and ergodic transition have a status of a mathematical theorem. Yet,…
Anisotropy-mediated reentrant localization
Xiaolong Deng, Alexander L. Burin, Ivan M. Khaymovich
We consider a 2d dipolar system, , with the generalized dipole-dipole interaction , and the power controlled experimentally in trapped-ion or Rydberg-atom sys…
Renormalization to localization without a small parameter
A. G. Kutlin, I. M. Khaymovich
We study the wave function localization properties in a d-dimensional model of randomly spaced particles with isotropic hopping potential depending solely on Euclidean interparticl…
Multifractality meets entanglement: relation for non-ergodic extended states
Giuseppe De Tomasi, Ivan M. Khaymovich
In this work we establish a relation between entanglement entropy and fractal dimension of generic many-body wave functions, by generalizing the result of Don N. Page [Phys. Re…