Effective temperature of a dissipative driven mesoscopic system

Details Effective temperature of a dissipative driven mesoscopic system Effective temperature of a dissipative driven mesoscopic system

2004-07-16

arxiv.org/abs/cond-mat/0407427v1

Europhys. Lett. 70, 642 (2005).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures, RevTex

Scientific paper

10.1209/epl/i2004-10515-8

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 (non-stationary) real-time Keldysh and retarded Green functions and we find that, in the linear response regime with weak heat transfer to the environment, an effective temperature accounts for the modification of the equilibrium fluctuation-dissipation relation. We discuss possible extensions of this analysis.

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