Thermalization and ergodicity in many-body open quantum systems
Quantum Physics
2010-05-31 v2 Statistical Mechanics
Chaotic Dynamics
Abstract
We study thermalization in many-body quantum systems locally coupled to an external bath. It is shown that quantum chaotic systems do thermalize, that is, they exhibit relaxation to an invariant ergodic state which, in the bulk, is well approximated by the grand canonical state. Moreover, the resulting ergodic state in the bulk does not depend on the details of the baths. On the other hand, for integrable systems the invariant state does depend on the bath and is different from the grand canonical state.
Cite
@article{arxiv.0910.1075,
title = {Thermalization and ergodicity in many-body open quantum systems},
author = {Marko Znidaric and Tomaz Prosen and Giuliano Benenti and Giulio Casati and Davide Rossini},
journal= {arXiv preprint arXiv:0910.1075},
year = {2010}
}
Comments
4 pages, 4 figures; v2. one new figure