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Dresden 2011 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 33: Brownian Motion, Stochastic Processes, Transport I

DY 33.4: Vortrag

Donnerstag, 17. März 2011, 14:45–15:00, HÜL 186

Langevin equation of a system nonlinearly coupled to a heat bath — •Mykhaylo Evstigneev and Peter Reimann — Universität Bielefeld, 33615 Bielefeld, Deutschland

We derive the generalized Langevin equation for a system in contact with a heat bath. In contrast to the previous treatments focusing on linear system-bath coupling, we consider a general case where the corresponding interaction potential has an arbitrary functional form, but is weak in comparison to the coupling between the bath particles. The validity of our results is demonstrated on two simple models.

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