1997/05/31 by Leticia F. Cugliandolo, David S. Dean, Jorge Kurchan · 5 citations
Engineering · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Phase Equilibria and Thermodynamics #Statistical Mechanics and Entropy #chao-dyn #cond-mat.stat-mech #hep-th #nlin.CD
paper · pdf · doi:10.1103/physrevlett.79.2168
published as Phys.Rev.Lett.79:2168-2171,1997 · 4 pages, RevTex; formula and reference added plus various minor changes in the text
arxiv created 1997/07/22 · openalex publication_date 1997/09/22 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
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 the fluctuation-dissipation theorem 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.