Effective temperature in driven vortex lattices with random pinning -: art. no. 227001

被引：40
|
作者：
Kolton, AB [1 ]
Exartier, R
Cugliandolo, LF
Domínguez, D
Gronbech-Jensen, N
机构：
[1] Ctr Atom Bariloche, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina
[2] LMDH, F-75252 Paris 05, France
[3] LPT Ecole Normale Super, F-75231 Paris 05, France
[4] LPTHE, F-75252 Paris 05, France
[5] Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA
[6] Univ Calif Berkeley, Lawrence Berkeley Lab, NERSC, Berkeley, CA 94720 USA
来源：
PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 22期
关键词：
D O I：
10.1103/PhysRevLett.89.227001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study numerically correlation and response functions in nonequilibrium driven vortex lattices with random pinning. From a generalized fluctuation-dissipation relation, we calculate an effective transverse temperature in the fluid moving phase. We find that the effective temperature decreases with increasing driving force and becomes equal to the equilibrium melting temperature when the dynamic transverse freezing occurs. We also discuss how the effective temperature can be measured experimentally from a generalized Kubo formula.
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页数：4
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