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DY: Fachverband Dynamik und Statistische Physik

DY 56: Poster - Statistical Physics

DY 56.13: Poster

Thursday, March 19, 2015, 16:00–18:00, Poster A

Brownian motion with external force: investigation of validity of the Jarzynski equality — •Nina Megier and Walter T. Strunz — Institut für Theoretische Physik, TU Dresden

We examine a harmonic oscillator coupled linearly to a harmonic bath. Initially our system of interest is in equilibrium, at later times it is driven far away from equilibrium by a time dependent force. We investigate both, the classical and the quantum case for the validity of the Jarzynski equality, also in strong coupling limit. Our analysis is based on the Gaussian statistics of the stochastic force acting on the harmonic oscillator in the Langevin picture.