Berlin 2005 – wissenschaftliches Programm
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DY: Dynamik und Statistische Physik
DY 51: Einstein Symposium Brownian Motion, Diffusion and Beyond (SYBM) – Contributed Talks II
DY 51.5: Vortrag
Mittwoch, 9. März 2005, 11:15–11:30, TU H2032
Why Hopping a Zig-zag Course — •Udo Erdmann1, Niko Komin1, Lutz Schimansky-Geier1, Igor M. Sokolov1 und Frank Moss2 — 1Humboldt-Universität zu Berlin, Instiut für Physik — 2Center for Neurodynamics, University of Missouri at St. Louis
We investigate self-moving particles which prefer to hop with a certain turning angle equally distributed to the right or left. We assume this turning angle distribution to be given by a double Gaussian distributions. Based on the model of active Brownian particles and using the Green-Kubo formula we calculate the diffusion coefficient in dependence on the mean and the dispersion of the turning angles. It is shown that bounded distribution of food in patches will be optimally consumed by the objects if the hop preferable with a given angle and not straight forwardly