Minimal coupling in oscillator models of quantum dissipation
Statistical Mechanics
2015-06-04 v1 Quantum Physics
Abstract
The dissipative harmonic oscillator has two representations. In the first representation the central oscillator couples with its position to an oscillator bath. In the second one it couples with its momentum to the bath. Both representations are related by a unitary transformation. If the central oscillator couples with its position and momentum to two independent baths, no such unitary transformation exists. We discuss two possible models of this type and their physical relevance.
Keywords
Cite
@article{arxiv.1203.6804,
title = {Minimal coupling in oscillator models of quantum dissipation},
author = {Heiner Kohler and Fernando Sols},
journal= {arXiv preprint arXiv:1203.6804},
year = {2015}
}