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DY: Dynamik und Statistische Physik
DY 46: Poster
DY 46.15: Poster
Thursday, March 11, 2004, 16:00–18:00, Poster D
Velocity fluctuations in ratchets — •Lukasz Machura1,2 and Peter Hänggi1 — 1Theoretishe Physik I, Institut für Physik, Universität Augsburg, Germany — 2Department of Theoretical Physics, Institute of Physics, University of Silesia, Poland
The quantity of foremost interest in the context of transport in periodic systems, like Brownian ratchets, is the mean velocity of the particle. However, the quality of the transport depends also on some other characteristics like effective diffusion or shape of the potential. In this work we use simulations to investigate the velocity correlation function in the inertia Brownian ratchet. The connection between its behavior and the optimal transport conditions is presented.