Study of a fluctuation-dissipation relation of a dissipative driven mesoscopic system

被引：20

作者：

Arrachea, L

Cugliandolo, LF

机构：

[1] Univ Buenos Aires, Dept Fis, RA-1428 Buenos Aires, DF, Argentina

[2] Ecole Normale Super, Phys Theor Lab, F-75231 Paris, France

[3] Phys Theor & Hautes Energies Lab, F-75252 Paris, France

来源：

EUROPHYSICS LETTERS | 2005年 / 70卷 / 05期

关键词：

D O I：

10.1209/epl/i2004-10515-8

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the nonequilibrium dynamics of a mesoscopic metallic ring threaded by a time-dependent magnetic field and coupled to an electronic reservoir. We analyze the relation between the (nonstationary) real-time Keldysh and retarded Green functions and we argue that, in the linear-response regime with weak heat transfer to the environment, an effective temperature accounts for the modi. cation of the equilibrium fluctuation-dissipation relation. We discuss possible extensions of this analysis.

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收藏

页码：642 / 648

页数：7

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