The Fluctuation-Dissipation Theorem fails for fast superdiffusion

被引：70

作者：

Costa, IVL

Morgado, R

Lima, MVBT

Oliveira, FA

机构：

[1] Univ Brasilia, Inst Phys, BR-70919970 Brasilia, DF, Brazil

[2] Univ Brasilia, Int Ctr Condensed Matter Phys, BR-70919970 Brasilia, DF, Brazil

来源：

EUROPHYSICS LETTERS | 2003年 / 63卷 / 02期

关键词：

D O I：

10.1209/epl/i2003-00514-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study anomalous diffusion for one-dimensional systems described by a generalized Langevin equation. We show that superdiffusive systems can be divided into two classes: normal and fast. For fast superdiffusion we prove that the Fluctuation-Dissipation Theorem does not hold. As a result, the system acquires an effective temperature. This effective temperature is a signature of metastability found in many complex systems such as spin-glass and granular material.

引用

页码：173 / 179

页数：7

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