Exact time evolution of space- and time-dependent correlation functions after an interaction quench in the 1D Bose gas
Statistical Mechanics
2015-03-13 v2 Quantum Gases
Abstract
We consider the non-equilibrium dynamics of the interacting Lieb-Liniger gas after instantaneously switching the interactions off. The subsequent time evolution of the space- and time-dependent correlation functions is computed exactly. Different relaxation behavior is observed for different correlation functions. The long time average is compared with the predictions of several statistical ensembles. The generalized Gibbs ensemble restricted to a fixed number of particles is shown to give correct results at large times for all length scales.
Keywords
Cite
@article{arxiv.1201.1885,
title = {Exact time evolution of space- and time-dependent correlation functions after an interaction quench in the 1D Bose gas},
author = {Jorn Mossel and Jean-Sébastien Caux},
journal= {arXiv preprint arXiv:1201.1885},
year = {2015}
}
Comments
9 pages, 11 figures