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Title: Quasilocal charges and the generalized Gibbs ensemble in the Lieb-Liniger model

Abstract

Here, we consider the construction of a generalized Gibbs ensemble composed of complete bases of conserved charges in the repulsive Lieb-Liniger model. We will show that it is possible to construct these bases with varying locality as well as demonstrating that such constructions are always possible provided one has in hand at least one complete basis set of charges. This procedure enables the construction of bases of charges that possess well-defined, finite expectation values given an arbitrary initial state. We demonstrate the use of these charges in the context of two different quantum quenches: a quench where the strength of the interactions in a one-dimensional gas is switched suddenly from zero to some finite value and the release of a one-dimensional cold atomic gas from a confining parabolic trap. While we focus on the Lieb-Liniger model in this paper, the principle of the construction of these charges applies to all integrable models, both in continuum and lattice form.

Authors:
 [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1489349
Alternate Identifier(s):
OSTI ID: 1483031
Report Number(s):
BNL-210827-2018-JAAM
Journal ID: ISSN 2470-0045; PLEEE8
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review E
Additional Journal Information:
Journal Volume: 98; Journal Issue: 5; Journal ID: ISSN 2470-0045
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Palmai, Tamas, and Konik, R. M. Quasilocal charges and the generalized Gibbs ensemble in the Lieb-Liniger model. United States: N. p., 2018. Web. doi:10.1103/PhysRevE.98.052126.
Palmai, Tamas, & Konik, R. M. Quasilocal charges and the generalized Gibbs ensemble in the Lieb-Liniger model. United States. https://doi.org/10.1103/PhysRevE.98.052126
Palmai, Tamas, and Konik, R. M. Wed . "Quasilocal charges and the generalized Gibbs ensemble in the Lieb-Liniger model". United States. https://doi.org/10.1103/PhysRevE.98.052126. https://www.osti.gov/servlets/purl/1489349.
@article{osti_1489349,
title = {Quasilocal charges and the generalized Gibbs ensemble in the Lieb-Liniger model},
author = {Palmai, Tamas and Konik, R. M.},
abstractNote = {Here, we consider the construction of a generalized Gibbs ensemble composed of complete bases of conserved charges in the repulsive Lieb-Liniger model. We will show that it is possible to construct these bases with varying locality as well as demonstrating that such constructions are always possible provided one has in hand at least one complete basis set of charges. This procedure enables the construction of bases of charges that possess well-defined, finite expectation values given an arbitrary initial state. We demonstrate the use of these charges in the context of two different quantum quenches: a quench where the strength of the interactions in a one-dimensional gas is switched suddenly from zero to some finite value and the release of a one-dimensional cold atomic gas from a confining parabolic trap. While we focus on the Lieb-Liniger model in this paper, the principle of the construction of these charges applies to all integrable models, both in continuum and lattice form.},
doi = {10.1103/PhysRevE.98.052126},
journal = {Physical Review E},
number = 5,
volume = 98,
place = {United States},
year = {Wed Nov 21 00:00:00 EST 2018},
month = {Wed Nov 21 00:00:00 EST 2018}
}

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Cited by: 10 works
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Works referencing / citing this record:

Towards a generalized hydrodynamics description of Rényi entropies in integrable systems
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