On the universal constraints for relaxation rates for quantum dynamical semigroup
Quantum Physics
2021-08-04 v1
Abstract
A conjecture for the universal constraints for relaxation rates of a quantum dynamical semigroup is proposed. It is shown that it holds for several interesting classes of semigroups, e.g. unital semigroups and semigroups derived in the weak coupling limit from the proper microscopic model. Moreover, proposed conjecture is supported by numerical analysis. This conjecture has several important implications: it allows to provide universal constraints for spectra of quantum channels and provides necessary condition to decide whether a given channel is consistent with Markovian evolution.
Cite
@article{arxiv.2011.10159,
title = {On the universal constraints for relaxation rates for quantum dynamical semigroup},
author = {Dariusz Chruscinski and Gen Kimura and Andrzej Kossakowski and Yasuhito Shishido},
journal= {arXiv preprint arXiv:2011.10159},
year = {2021}
}
Comments
9 pages, 1 figure