Reversal of relaxation due to dephasing environment
Statistical Mechanics
2015-06-11 v1
Abstract
We show that any finite quantum system can be coupled to a dephasing environment in such a way that the internal mechanism responsible for relaxation of observables acting on can be effectively canceled. By adjusting this coupling, the difference between the initial and the long--time expectation values of any observable on can be tuned to arbitrarily small however nonzero value. This statement is exemplified and visualized by numerical studies of relaxation in a generic one-dimensional system of interacting fermions.
Keywords
Cite
@article{arxiv.1503.03618,
title = {Reversal of relaxation due to dephasing environment},
author = {Marcin Mierzejewski and Janez Bonca and Jerzy Dajka},
journal= {arXiv preprint arXiv:1503.03618},
year = {2015}
}