Quench dynamics in disordered two-dimensional Gross-Pitaevskii Lattices

We numerically investigate the quench expansion dynamics of an initially confined state in a two-dimensional Gross-Pitaevskii lattice in the presence of external disorder. The expansion dynamics is conveniently described in the control parameter space of the energy and norm densities. The expansion...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Authors Mallick, Arindam, Thudiyangal Mithun, Flach, Sergej
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 26.05.2020
Subjects
Lattices (mathematics)
Physics - Disordered Systems and Neural Networks
Physics - Quantum Gases
Physics - Quantum Physics
Physics - Statistical Mechanics
Online AccessGet full text

Cover

More Information
Summary:We numerically investigate the quench expansion dynamics of an initially confined state in a two-dimensional Gross-Pitaevskii lattice in the presence of external disorder. The expansion dynamics is conveniently described in the control parameter space of the energy and norm densities. The expansion can slow down substantially if the expected final state is a non-ergodic non-Gibbs one, regardless of the disorder strength. Likewise stronger disorder delays expansion. We compare our results with recent studies for quantum many body quench experiments.
ISSN:2331-8422
DOI:10.48550/arxiv.2005.12490