Berlin 2015 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 62: Poster - Dynamics

DY 62.6: Poster

Donnerstag, 19. März 2015, 16:00–18:00, Poster A

Bifurcations in a minimal model of predator-swarm interactions — •Lukas Ophaus and Uwe Thiele — Institut für Theoretische Physik, Westfälische Wilhelms-Universtität Münster, Germany

We analyse a minimal model of predator-swarm interactions, that was first introduced by Y. Chen and T. Kolokolnikov. It was found that depending on the employed parameters and model details different dynamics occur. The complex shapes of the swarm are similar to observations in nature [1].

Here, we investigate in particular the bifurcations between static and dynamical states. We focus on the predator strength. Different outcomes are e.g. a stable ring of the prey with the predator at its centre, perdiodic chasing dynamics and solutions with irregular dynamics.

[1] Chen Y., Kolokolnikov T., J. R. Soc. Interface 11: 20131208 (2014).