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相关论文: Absence of two-body delocalization transitions in …

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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-neighbor tight-binding disordered model which carries both…

无序系统与神经网络 · 物理学 2024-01-24 Adway Kumar Das , Anandamohan Ghosh , Ivan M. Khaymovich

We study many-body localization in a one dimensional optical lattice filled with bosons. The interaction between bosons is assumed to be random, which can be realized for atoms close to a microchip exposed to a spatially fluctuating…

量子气体 · 物理学 2017-12-21 Piotr Sierant , Dominique Delande , Jakub Zakrzewski

We study the many-body localization aspects of single-particle mobility edges in fermionic systems. We investigate incommensurate lattices and random disorder Anderson models. Many-body localization and quantum nonergodic properties are…

统计力学 · 物理学 2016-06-07 Xiaopeng Li , J. H. Pixley , Dong-Ling Deng , Sriram Ganeshan , S. Das Sarma

Motivated by recent experiments on interacting bosons in quasi-one-dimensional optical lattice [Nature {\bf 573}, 385 (2019)] we analyse theoretically properties of the system in the crossover between delocalized and localized regimes.…

无序系统与神经网络 · 物理学 2020-07-29 Ruixiao Yao , Jakub Zakrzewski

Many-body localization provides a mechanism to avoid thermalization in isolated interacting quantum systems. The breakdown of thermalization may be complete, when all eigenstates in the many-body spectrum become localized, or partial, when…

无序系统与神经网络 · 物理学 2020-09-02 Pietro Brighi , Dmitry Abanin , Maksym Serbyn

We review the physics of many-body localization in models with incommensurate potentials. In particular, we consider one-dimensional quasiperiodic models with single-particle mobility edges. Although a conventional perspective suggests that…

强关联电子 · 物理学 2017-08-02 Dong-Ling Deng , Sriram Ganeshan , Xiaopeng Li , Ranjan Modak , Subroto Mukerjee , J. H. Pixley

We study Anderson localization in two-dimensional systems with purely off-diagonal disorder. Localization lengths are computed by the transfer-matrix method and their finite-size and scaling properties are investigated. We find various…

无序系统与神经网络 · 物理学 2007-05-23 Andrzej Eilmes , Rudolf A. Roemer

We examine the localization properties of the 2D Anderson Hamiltonian with off-diagonal disorder. Investigating the behavior of the participation numbers of eigenstates as well as studying their multifractal properties, we find states in…

无序系统与神经网络 · 物理学 2009-10-30 Andrzej Eilmes , Rudolf A. Roemer , Michael Schreiber

We present the first rigorous result on Anderson localization for interacting systems of quantum particles subject to a deterministic (e.g., almost periodic) disordered external potential. For a particular class of deterministic, fermionic,…

数学物理 · 物理学 2014-02-28 Victor Chulaevsky

Quantum simulation in experiments of many-body systems may bring new phenomena which are not well studied theoretically. Motivated by a recent work of quantum simulation on a superconducting ladder circuit, we investigate the rung-pair…

量子气体 · 物理学 2020-12-21 Shang-Shu Li , Zi-Yong Ge , Heng Fan

Motivated by experimental progress in cold atomic systems, we use and advance Localisation Landscape Theory (LLT), to examine two-dimensional systems with point-like random scatterers. We begin by showing that exact eigenstates cannot be…

量子气体 · 物理学 2021-11-23 Sophie S. Shamailov , Dylan J. Brown , Thomas A. Haase , Maarten D. Hoogerland

To expand the framework available for interpreting experiments on disordered strongly correlated systems, and in particular to explore further the strong-coupling zero-bias anomaly found in the Anderson-Hubbard model, we ask how this…

强关联电子 · 物理学 2015-06-04 Hong-Yi Chen , W. A. Atkinson , R. Wortis

We consider a pair of bosonic particles in a one-dimensional tight-binding periodic potential described by the Hubbard model with attractive or repulsive on-site interaction. We derive explicit analytic expressions for the two-particle…

量子物理 · 物理学 2008-08-19 Manuel Valiente , David Petrosyan

We establish the phenomenon of Anderson localisation for a quantum two-particle system on a d-dimensional lattice with short-range interaction and in presence of an IID external potential with sufficiently regular marginal distribution.

数学物理 · 物理学 2009-11-13 Victor Chulaevsky , Yuri Suhov

We report the experimental observation of the interaction and attraction of many localized modes in a two dimensional (2D) system realized by a disordered optical fiber supporting transverse Anderson localization. We show that a nonlocal…

光学 · 物理学 2014-07-31 Marco Leonetti , Salman Karbasi , Arash Mafi , Claudio Conti

It has recently been established that a short-range interaction can strongly delocalize a pair of particles moving in a disordered potential. We investigate whether an analogous effect exists also for pairs of quasiparticles in the Anderson…

凝聚态物理 · 物理学 2007-05-23 Felix von Oppen , Tilo Wettig

We uncover the interaction-induced \emph{stable self-localization} of bosons in disorder-free superlattices. In these nonthermalized multi-particle states, one of the particles forms a superposition of multiple standing waves, so that it…

量子物理 · 物理学 2023-05-03 Na Zhang , Yongguan Ke , Ling Lin , Li Zhang , Chaohong Lee

Lessons from Anderson localization highlight the importance of dimensionality of real space for localization due to disorder. More recently, studies of many-body localization have focussed on the phenomenon in one dimension using techniques…

无序系统与神经网络 · 物理学 2020-02-11 Thorsten B. Wahl , Arijeet Pal , Steven H. Simon

Many-body localization in a disordered system of interacting spins coupled by the long-range interaction $1/R^{\alpha}$ is investigated combining analytical theory considering resonant interactions and a finite size scaling of exact…

无序系统与神经网络 · 物理学 2015-03-03 Alexander L. Burin

In this Letter we study numerically the Anderson model on partially disordered random regular graphs (RRG) considered as the toy model for a Hilbert space of interacting disordered many-body system. The protected subsector of zero-energy…

无序系统与神经网络 · 物理学 2022-09-28 O. Valba , A. Gorsky