339 citations · 2.7k across the 74 of their papers we have counts for
13 papers · 1 filter
Robust non-ergodicity of ground state in the ensemble
Adway Kumar Das, Anandamohan Ghosh, Ivan M. Khaymovich
In various chaotic quantum many-body systems, the ground states show non-trivial athermal behavior despite the bulk states exhibiting thermalization. Such athermal states play a cr…
Stable many-body localization under random continuous measurements in the no-click limit
Giuseppe De Tomasi, Ivan M. Khaymovich
In this work, we investigate the localization properties of a paradigmatic model, coupled to a monitoring environment and possessing a many-body localized (MBL) phase. We focus on…
Anatomy of the eigenstates distribution: a quest for a genuine multifractality
Anton Kutlin, Ivan M. Khaymovich
Motivated by a series of recent works, an interest in multifractal phases has risen as they are believed to be present in the Many-Body Localized (MBL) phase and are of high demand…
Robust extended states in Anderson model on partially disordered random regular graphs
Daniil Kochergin, Ivan M. Khaymovich, Olga Valba +1
In this work we analytically explain the origin of the mobility edge in the partially disordered random regular graphs of degree d, i.e., with a fraction of the sites being dis…
Observation of reentrant metal-insulator transition in a random-dimer disordered SSH lattice
Ze-Sheng Xu, Jun Gao, Adrian Iovan +3
The interrelationship between localization, quantum transport, and disorder has remained a fascinating focus in scientific research. Traditionally, it has been widely accepted in t…
Ergodicity-breaking phase diagram and fractal dimensions in long-range models with generically correlated disorder
Shilpi Roy, Saurabh Basu, Ivan M. Khaymovich
Models with correlated disorders are rather common in physics. In some of them, like the Aubry-André (AA) model, the localization phase diagram can be found from the (self)duality…
Quasiperiodicity hinders ergodic Floquet eigenstates
Miguel Gonçalves, Pedro Ribeiro, Ivan M. Khaymovich
Quasiperiodic systems in one dimension can host non-ergodic states, e.g. localized in position or momentum. Periodic quenches within localized phases yield Floquet eigenstates of t…
Coexistence of extended and localized states in finite-sized mosaic Wannier-Stark lattices
Jun Gao, Ivan M. Khaymovich, Adrian Iovan +7
Quantum transport and localization are fundamental concepts in condensed matter physics. It is commonly believed that in one-dimensional systems, the existence of mobility edges is…
Probing multi-mobility edges in quasiperiodic mosaic lattices
Jun Gao, Ivan M. Khaymovich, Xiao-Wei Wang +8
The mobility edge (ME) is a crucial concept in understanding localization physics, marking the critical transition between extended and localized states in the energy spectrum. And…
Anatomy of the fragmented Hilbert space: eigenvalue tunneling, quantum scars and localization in the perturbed random regular graph
Daniil Kochergin, Ivan M. Khaymovich, Olga Valba +1
We consider the properties of the random regular graph with node degree perturbed by chemical potentials for a number of short -cycles. We analyze both numerically and…
Absence of Mobility Edge in Short-range Uncorrelated Disordered Model: Coexistence of Localized and Extended States
Adway Kumar Das, Anandamohan Ghosh, Ivan M. Khaymovich
Unlike the well-known Mott's argument that extended and localized states should not coexist at the same energy in a generic random potential, we provide an example of a nearest-nei…
Tuning the phase diagram of a Rosenzweig-Porter model with fractal disorder
Madhumita Sarkar, Roopayan Ghosh, Ivan M. Khaymovich
Rosenzweig-Porter (RP) model has garnered much attention in the last decade, as it is a simple analytically tractable model showing both ergodic--nonergodic extended and Anderson l…
Non-Hermiticity induces localization: good and bad resonances in power-law random banded matrices
Giuseppe De Tomasi, Ivan M. Khaymovich
The power-law random banded matrix (PLRBM) is a paradigmatic ensemble to study the Anderson localization transition (AT). In -dimension the PLRBM are random matrices with algebr…