Berlin 2015 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 20: Microswimmers, Active Liquids II (joint DY/BP/CPP)

BP 20.7: Vortrag

Dienstag, 17. März 2015, 11:15–11:30, BH-N 128

Velocity distributions in active Brownian suspensions — •Zahra Mokhtari and Annette Zippelius — Institute for Theoretical Physics, Georg-August University of Goettingen

We study numerically a model of self-propelled polar disks in suspension. The active particles interact via hard-core elastic interactions and are driven along their axes, which are subject to rotational noise. We study the distribution of linear and rotational velocities, which are predicted to show strongly anomalous but largely universal features. We furthermore analyze the correlations due to the coupling of translational and rotational motion and show that the alignment of particles' velocities and orientations can be controlled by the damping.