Giacomo Gradenigo, Andrea Puglisi, Alessandro Sarracino, Dario Villamaina, Angelo Vulpiani
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.
View original:
http://arxiv.org/abs/1203.4941
No comments:
Post a Comment