On the fast and the slow components of thermal fluctuations

D. Jou, J. E. Llebot, J. Casas-Vasquez

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12 Citations (Scopus)


In the framework of extended irreversible thermodynamics, we propose a unified description of the fluctuations of both the temperature and the heat flux. Their two-time correlations are obtained in equilibrium. When applied to non-equilibrium steady states, the formalism suggests some modifications in the usual fluctuation-dissipation expressions, gives a non-vanishing correlation between quantities of different time reversal symmetry, and provides a simple example of the breaking of the validity of the Onsager relations. © 1981.
Original languageEnglish
Pages (from-to)208-220
JournalPhysica A: Statistical Mechanics and its Applications
Publication statusPublished - 1 Jan 1981


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