A quantum generalization of the thermal viscous friction law

Details A quantum generalization of the thermal viscous friction law A quantum generalization of the thermal viscous friction law

2003-05-10

arxiv.org/abs/cond-mat/0305228v1

Physics

Condensed Matter

Statistical Mechanics

5 pages, 0 figures, submitted to Phys.Rev.Lett. on 09.05.2003

Scientific paper

On the basis of the equivalence of the energy balance deacription at micro- and macro-level we propose a quantum generalization of the viscous friction law for a macroscopic Langevin equation describing thermal fluctuations without the zero point contribution. This equation recovers the classical case in the limit h -> 0. In particular it satisfies the quantum regression theorem and resolves several anomalies appearing in the quantum extension of the fluctuation dissipation theorem.

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