Temperature in nonequilibrium systems with conserved energy

Abstract : We study a class of nonequilibrium lattice models which describe local redistributions of a globally conserved energy. A particular subclass can be solved analytically, allowing to define a temperature T_{th} along the same lines as in the equilibrium microcanonical ensemble. The fluctuation-dissipation relation is explicitely found to be linear, but its slope differs from the inverse temperature T_{th}^{-1}. A numerical renormalization group procedure suggests that, at a coarse-grained level, all models behave similarly, leading to a two-parameter description of their macroscopic properties.
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https://hal.archives-ouvertes.fr/hal-00200739
Contributor : Olivier Dauchot <>
Submitted on : Friday, December 21, 2007 - 1:45:56 PM
Last modification on : Wednesday, January 23, 2019 - 2:38:19 PM

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Eric Bertin, Olivier Dauchot, Michel Droz. Temperature in nonequilibrium systems with conserved energy. 2004. ⟨hal-00200739⟩

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