Geometric phase distributions for open quantum systems
Quantum Physics
2007-05-23 v2
Abstract
In an open system, the geometric phase should be described by a distribution. We show that a geometric phase distribution for open system dynamics is in general ambiguous, but the imposition of reasonable physical constraints on the environment and its coupling with the system yields a unique geometric phase distribution that applies even for mixed states, non-unitary dynamics, and non-cyclic evolutions.
Cite
@article{arxiv.quant-ph/0405052,
title = {Geometric phase distributions for open quantum systems},
author = {K. -P. Marzlin and S. Ghose and B. C. Sanders},
journal= {arXiv preprint arXiv:quant-ph/0405052},
year = {2007}
}
Comments
Some minor revisions, references updated