Non-Hermitian Hamiltonians in decoherence and equilibrium theory
Quantum Physics
2013-04-12 v1
Abstract
There are many formalisms to describe quantum decoherence. However, many of them give a non general and ad hoc definition of "pointer basis" or "moving preferred basis", and this fact is a problem for the decoherence program. In this paper we will consider quantum systems under a general theoretical framework for decoherence and we will present a tentative definition of the moving preferred basis. These ideas are implemented in a well-known open system model. The obtained decoherence and the relaxation times are defined and compared with those of the literature for the Lee- Friedrichs model.
Keywords
Cite
@article{arxiv.1304.3190,
title = {Non-Hermitian Hamiltonians in decoherence and equilibrium theory},
author = {Mario Castagnino and Sebastian Fortin},
journal= {arXiv preprint arXiv:1304.3190},
year = {2013}
}
Comments
23 pages. arXiv admin note: substantial text overlap with arXiv:1009.0535, arXiv:1006.2130