Fluctuation relations for a driven Brownian particle
统计力学
2007-05-23 v2 其他凝聚态物理
摘要
We consider a driven Brownian particle, subject to both conservative and non-conservative applied forces, whose probability evolves according to the Kramers equation. We derive a general fluctuation relation, expressing the ratio of the probability of a given Brownian path in phase space with that of the time-reversed path, in terms of the entropy flux to the heat reservoir. This fluctuation relation implies those of Seifert, Jarzynski and Gallavotti-Cohen in different special cases.
引用
@article{arxiv.cond-mat/0603506,
title = {Fluctuation relations for a driven Brownian particle},
author = {A. Imparato and L. Peliti},
journal= {arXiv preprint arXiv:cond-mat/0603506},
year = {2007}
}