Completely Positive Quantum Dissipation
Quantum Physics
2009-11-06 v1 Statistical Mechanics
Abstract
A completely positive master equation describing quantum dissipation for a Brownian particle is derived starting from microphysical collisions, exploiting a recently introduced approach to subdynamics of a macrosystem. The obtained equation can be cast into Lindblad form with a single generator for each Cartesian direction. Temperature dependent friction and diffusion coefficients for both position and momentum are expressed in terms of the collision cross-section.
Cite
@article{arxiv.quant-ph/0002094,
title = {Completely Positive Quantum Dissipation},
author = {B. Vacchini},
journal= {arXiv preprint arXiv:quant-ph/0002094},
year = {2009}
}
Comments
8 pages, revtex, no figures