Quasi-equilibrium interpretation of aging dynamics

Details Quasi-equilibrium interpretation of aging dynamics Quasi-equilibrium interpretation of aging dynamics

1999-07-28

arxiv.org/abs/cond-mat/9907438v3

J. Phys. A 33 (2000) 891

Physics

Condensed Matter

Disordered Systems and Neural Networks

11 pages. Completely revised version

Scientific paper

10.1088/0305-4470/33/5/306

We develop an interpretation of the off-equilibrium dynamical solution of mean-field glassy models in terms of quasi-equilibrium concepts. We show that the relaxation of the "thermoremanent magnetization" follows a generalized version of the Onsager regression postulate of induced fluctuations. We then find the rationale for the equality between the fluctuation-dissipation ratio and the rate of growth of the configurational entropy close to the asymptotic state, found empirically in mean-field solutions.

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