Aging and fluctuation-dissipation ratio for the dilute Ising model

被引：44

作者：

Calabrese, P

Gambassi, A

机构：

[1] Scuola Normale Super Pisa, I-56126 Pisa, Italy

[2] Ist Nazl Fis Nucl, I-56126 Pisa, Italy

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.66.212407

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 rootepsilon 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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页码：1 / 4

页数：4

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