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Nature. 2005 Jan 20;433(7023):222-5.

In and out of equilibrium.

Author information

1
PMMH Ecole Supérieure de Physique et Chimie Industrielles, 10 rue Vauquelin, 75231 Paris CEDEX 05, France. jorge@pmmh.espci.fr

Abstract

Albert Einstein's work on brownian motion showed how thermal equilibrium could be brought about by work exchanged through thermal fluctuations and viscous dissipation. Glasses are out-of-equilibrium systems in which this exchange happens at widely different timescales simultaneously. Theory then suggests the fascinating possibility that such behaviour may lead to a more general form of thermalization, in which the effective temperature shared by all components differs at each timescale.

PMID:
15662408
DOI:
10.1038/nature03278

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