Fluctuation-Dissipation theorems and entropy production in relaxational systems
Statistical Mechanics
2009-01-23 v2 chao-dyn
High Energy Physics - Theory
Chaotic Dynamics
Abstract
We show that for stochastic dynamical systems out of equilibrium the violation of the fluctuation-dissipation equality is bounded by a function of the entropy production. The result applies to a much wider situation than `near equilibrium', comprising diffusion as well as glasses and other macroscopic systems far from equilibrium. For aging systems this bounds the age-frequency regimes in which the susceptibilities satisfy FDT in terms of the rate of decay of the H-function, a question intimately related to the reading of a thermometer placed in contact with the system.
Cite
@article{arxiv.cond-mat/9705002,
title = {Fluctuation-Dissipation theorems and entropy production in relaxational systems},
author = {Leticia F. Cugliandolo and David S. Dean and Jorge Kurchan},
journal= {arXiv preprint arXiv:cond-mat/9705002},
year = {2009}
}
Comments
4 pages, RevTex; formula and reference added plus various minor changes in the text