Temperature in Nonequilibrium Systems with Conserved Energy

Eric Bertin, Olivier Dauchot, and Michel Droz
Phys. Rev. Lett. 93, 230601 – Published 1 December 2004

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 us to define a temperature Tth along the same lines as in the equilibrium microcanonical ensemble. The fluctuation-dissipation relation is explicitly found to be linear, but its slope differs from the inverse temperature Tth1. 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.

  • Figure
  • Received 30 June 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.230601

©2004 American Physical Society

Authors & Affiliations

Eric Bertin1, Olivier Dauchot2, and Michel Droz1

  • 1Department of Theoretical Physics, University of Geneva, CH-1211 Geneva 4, Switzerland
  • 2SPEC, CEA Saclay, F-91191 Gif-sur-Yvette Cedex, France

Comments & Replies

Bertin, Dauchot, and Droz Reply:

E. Bertin, O. Dauchot, and M. Droz
Phys. Rev. Lett. 94, 208902 (2005)

Comment on “Temperature in Nonequilibrium Systems with Conserved Energy”

Yair Shokef and Dov Levine
Phys. Rev. Lett. 94, 208901 (2005)

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Vol. 93, Iss. 23 — 3 December 2004

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