Generalized Onsager-Machlup's theory of thermal fluctuations for non-equilibrium systems
Statistical Mechanics
2009-08-05 v1 Soft Condensed Matter
Abstract
In this work a generalization of Onsager-Machlup's theory of time-dependent thermal fluctuations of equilibrium systems is proposed, to the case in which the system relaxes irreversibly along a non-equilibrium trajectory that can be approximated as a sequence of stationary states. This generalization is summarized by a canonical description of the dependence of the two-time correlation function C(t+\tau,t), and of the equal-time correlation function \sigma(t)= C(t,t) (the covariance of the fluctuations), on the non-equilibrium relaxation time t.
Keywords
Cite
@article{arxiv.0908.0521,
title = {Generalized Onsager-Machlup's theory of thermal fluctuations for non-equilibrium systems},
author = {M. Medina-Noyola},
journal= {arXiv preprint arXiv:0908.0521},
year = {2009}
}