Dynamical regimes of dissipative quantum systems
Quantum Physics
2015-06-17 v2 Strongly Correlated Electrons
Abstract
We reveal several distinct regimes of the relaxation dynamics of a small quantum system coupled to an environment within the plane of the dissipation strength and the reservoir temperature. This is achieved by discriminating between coherent dynamics with damped oscillatory behavior on all time scales, partially coherent behavior being nonmonotonic at intermediate times but monotonic at large ones, and purely monotonic incoherent decay. Surprisingly, elevated temperature can render the system `more coherent' by inducing a transition from the partially coherent to the coherent regime. This provides a refined view on the relaxation dynamics of open quantum systems.
Cite
@article{arxiv.1309.7860,
title = {Dynamical regimes of dissipative quantum systems},
author = {D. M. Kennes and O. Kashuba and V. Meden},
journal= {arXiv preprint arXiv:1309.7860},
year = {2015}
}
Comments
5 pages, 3 figures