Out-of-equilibrium generalized fluctuation-dissipation relations

Giacomo Gradenigo; Andrea Puglisi; Alessandro Sarracino; Dario Villamaina; Angelo Vulpiani

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arXiv · 1203.4941

Out-of-equilibrium generalized fluctuation-dissipation relations

Giacomo Gradenigo·Andrea Puglisi·Alessandro Sarracino·Dario Villamaina·Angelo Vulpiani

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Abstract

We discuss fluctuation-dissipation relations valid under general conditions even out of equilibrium. The response function is expressed in terms of unperperturbed correlation functions, where contributions peculiar to non-equilibrium can appear. Such extra terms take into account the interaction among the relevant degrees of freedom in the system. We illustrate the general formalism with two examples: driven granular systems and anomalous diffusion on comb structures.

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Giacomo Gradenigo, Andrea Puglisi, Alessandro Sarracino, Dario Villamaina, Angelo Vulpiani. 2012-03-22. Out-of-equilibrium generalized fluctuation-dissipation relations. https://arxiv.org/abs/1203.4941

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