Aging and fluctuation-dissipation ratio for the diluted Ising Model

Details Aging and fluctuation-dissipation ratio for the diluted Ising Model Aging and fluctuation-dissipation ratio for the diluted Ising Model

2002-07-19

arxiv.org/abs/cond-mat/0207487v1

Phys.Rev.B66:212407,2002

Physics

Condensed Matter

Statistical Mechanics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevB.66.212407

We consider the out-of-equilibrium, purely relaxational dynamics of a weakly diluted Ising model in the aging regime at criticality. We derive at first order in a $\sqrt{\epsilon}$ expansion the two-time response and correlation functions for vanishing momenta. The long-time limit of the critical fluctuation-dissipation ratio is computed at the same order in perturbation theory.

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