339 citations · 2.7k across the 74 of their papers we have counts for
74 papers
Limitations of Avila-inspired theory in the diamond chain with quasiperiodic disorder
Manish Kumar, Ivan M. Khaymovich, Auditya Sharma
The mobility edges (MEs) that separate localized, multifractal and ergodic states in energy are a central concept in understanding Anderson localization. In this work we study the…
Robust Correlation-Induced Localization Under Time-Reversal Symmetry Breaking
Bikram Pain, Sthitadhi Roy, Jens H. Bardarson +1
We study Anderson localization in a one-dimensional disordered system with long-range correlated hopping decaying as with complex hopping amplitudes that break time-rever…
Floquet-driven light transport in programmable photonic processors via discretized evolution of synthetic magnetic fields
Andrea Cataldo, Rohan Yadgirkar, Ze-Sheng Xu +5
Photons, unlike electrons, do not couple directly to magnetic fields, yet synthetic gauge fields can impart magnetic-like responses and enable directional transport. Discretized Fl…
Quadratic Hamiltonian approach to heat transport in fermionic systems
Ilari K. Mäkinen, Ivan M. Khaymovich, Jukka P. Pekola
We investigate the problem of quantum heat transport, based on the quadratic fermionic systems with help of the Peschel trick of single-particle correlation functions. The efficien…
Anomalous energy correlations and spectral form factor in the nonergodic phase of the -ensemble
Basudha Roy, Adway Kumar Das, Anandamohan Ghosh +1
The -ensemble is a prototypical model of a single particle system on a one-dimensional disordered lattice with inhomogeneous nearest neighbor hopping. Corresponding nonergodic p…
Power-law banded random matrix ensemble as a model for quantum many-body Hamiltonians
Wouter Buijsman, Masudul Haque, Ivan M. Khaymovich
We explore interpretations of the power-law banded random matrix (PLBRM) ensemble as Hamiltonians of one-dimensional quantum many-body systems. We introduce and compare a number of…
Emergent multifractality in power-law decaying eigenstates
Adway Kumar Das, Anandamohan Ghosh, Ivan M. Khaymovich
Eigenstate multifractality is of significant interest with potential applications in various fields of quantum physics. Most of the previous studies concentrated on fine-tuned quan…
Re-entrant localization induced by short-range hopping in the fractal Rosenzweig-Porter Model
Roopayan Ghosh, Madhumita Sarkar, Ivan M. Khaymovich
Typically, metallic systems localized under strong disorder exhibit a transition to \imk{delocalization} %finite conduction as kinetic terms increase. In this work, we reveal the o…
Large inverse Faraday effect for Rydberg states of free atoms and isolated donors in semiconductors
Patrick J. Wong, Ivan M. Khaymovich, Gabriel Aeppli +1
We report on the induction of magnetization in Rydberg systems by means of the inverse Faraday effect, and propose the appearance of the effect in two such systems, Rydberg atoms p…
Refined cyclic renormalization group in Russian Doll model
Vedant Motamarri, Ivan M. Khaymovich, Alexander Gorsky
Focusing on Bethe-ansatz integrable models, robust to both time-reversal symmetry breaking and disorder, we consider the Russian Doll Model (RDM) for finite system sizes and energy…
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…
Superdiffusion in random two dimensional system with time-reversal symmetry and long-range hopping
Xiaolong Deng, Ivan M. Khaymovich, Alexander L. Burin
Although it is recognized that Anderson localization takes place for all states at a dimension less or equal , while delocalization is expected for hopping decreasing…