Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Bulletin of the American Physical Society

Relaxation and thermalization of isolated quantum many-body systems after a local quench

Eduardo Jonathan Torres-Herrera, Léa Ferreira dos Santos

Published Mar 7, 2014• 0 citations
OpenAlex

Related papers

Isolated many-body quantum systems far from equilibrium: Relaxation process and thermalization

Eduardo Jonathan Torres-Herrera, Léa Ferreira dos Santos

AIP conference proceedings•Jan 1, 2014•6 citations

Dynamics of isolated quantum systems: many-body localization and thermalization

Eduardo Jonathan Torres-Herrera, Marco Távora, Léa Ferreira dos Santos

Bulletin of the American Physical Society•May 24, 2016•0 citations

Local emergence of thermal correlations in an isolated quantum many-body system

Tim Langen, R. Geiger, Maximilian Kuhnert +2 more

arXiv:1305.3708•Nature Physics•Sep 6, 2013•440 citations

Quenches, Relaxation, and Prethermalization in an Isolated Quantum System

Tim Langen, Jörg Schmiedmayer

Cambridge University Press eBooks•Oct 4, 2018•1 citation

Relaxation and thermalization of isolated many-body quantum systems

Eduardo Jonathan Torres-Herrera, Davida Kollmar, Léa Ferreira dos Santos

We provide an overview of our numerical and analytical studies of isolated interacting quantum systems that are abruptly quenched out of equilibrium instantaneously. We describe the relaxation process to a new equilibrium and obtain lower bounds for the relaxation time of full random matrices and realistic systems with two-body interactions. We show that the size of the time fluctuations after relaxation decays exponentially with system size for systems without too many degeneracies. We also discuss the conditions for thermalization and demonstrate that it can happen after local and global quenches in space. The analyses are developed for systems, initial states, and few-body observables accessible to experiments with optical lattices.

arXiv:1403.6481•Physica Scripta•Oct 1, 2015•50 citations

Spontaneous emission and thermalization of cold bosons in optical lattices

Johannes Schachenmayer, Lode Pollet, Matthias Troyer +1 more

We study the thermalization of excitations generated by spontaneous emission events for cold bosons in an optical lattice. Computing the dynamics described by the many-body master equation, we characterize equilibration time scales in different parameter regimes. For simple observables, we find regimes in which the system relaxes rapidly to values in agreement with a thermal distribution, and others where thermalization does not occur on typical experimental time scales. Because spontaneous emissions lead effectively to a local quantum quench, this behavior is strongly dependent on the low-energy spectrum of the Hamiltonian, and undergoes a qualitative change at the Mott insulator--superfluid transition point. These results have important implications for the understanding of thermalization after localized quenches in isolated quantum gases, as well as the characterization of heating in experiments.

arXiv:1305.1301•Physical Review A•Jan 10, 2014•39 citations
We provide an overview of our numerical and analytical studies of isolated interacting quantum systems that are abruptly quenched out of equilibrium instantaneously. We describe the relaxation process to a new equilibrium and obtain lower bounds for the relaxation time of full random matrices and realistic systems with two-body interactions. We show that the size of the time fluctuations after relaxation decays exponentially with system size for systems without too many degeneracies. We also discuss the conditions for thermalization and demonstrate that it can happen after local and global quenches in space. The analyses are developed for systems, initial states, and few-body observables accessible to experiments with optical lattices.
We study the thermalization of excitations generated by spontaneous emission events for cold bosons in an optical lattice. Computing the dynamics described by the many-body master equation, we characterize equilibration time scales in different parameter regimes. For simple observables, we find regimes in which the system relaxes rapidly to values in agreement with a thermal distribution, and others where thermalization does not occur on typical experimental time scales. Because spontaneous emissions lead effectively to a local quantum quench, this behavior is strongly dependent on the low-energy spectrum of the Hamiltonian, and undergoes a qualitative change at the Mott insulator--superfluid transition point. These results have important implications for the understanding of thermalization after localized quenches in isolated quantum gases, as well as the characterization of heating in experiments.