Dephasing of a particle in a dissipative environment
Mesoscale and Nanoscale Physics
2009-11-13 v2
Abstract
The motion of a particle in a ring of length L is influenced by a dirty metal environment whose fluctuations are characterized by a short correlation distance . We analyze the induced decoherence process, and compare the results with those obtained in the opposing Caldeira-Leggett limit (). A proper definition of the dephasing factor that does not depend on a vague semiclassical picture is employed. Some recent Monte-Carlo results about the effect of finite temperatures on "mass renormalization" in this system are illuminated.
Cite
@article{arxiv.0708.0965,
title = {Dephasing of a particle in a dissipative environment},
author = {Doron Cohen and Baruch Horovitz},
journal= {arXiv preprint arXiv:0708.0965},
year = {2009}
}
Comments
18 pages, 2 figures, some textual improvements, to be published in JPA