Regensburg 2007 – scientific programme
Parts | Days | Selection | Search | Downloads | Help
DY: Fachverband Dynamik und Statistische Physik
DY 30: Poster II
DY 30.23: Poster
Thursday, March 29, 2007, 16:00–18:00, Poster D
Collective motion of active brownian particles — •Jessica Strefler1, Udo Erdmann2, and Lutz Schimansky-Geier1 — 1Humboldt-Universität zu Berlin, Newtonstr. 15, 12489 Berlin — 2Helmholtz Gemeinschaft, Anna-Louisa-Karsch-Str. 2, 10178 Berlin
In nature complex collective dynamics within swarms of individual animals, e.g. fish can be observed. The swarming behavior originates from interactions between the indiviuals. The most common modes of motion are a coherent translation and a collective rotation. Motivated by this observations, we discuss a model of active Brownian particles in three dimensions interacting via a Morse-type potential. This model qualitativly reproduces the biological behavior. Numerical simulations show either a coherent translatory or an incoherent rotating state. Depending on the number of particles and the noise intensity, phase transitions between the two states are observed.