Collective Dynamics of Deformable Self-Propelled Particles with Repulsive Interaction

Details Collective Dynamics of Deformable Self-Propelled Particles with Repulsive Interaction Collective Dynamics of Deformable Self-Propelled Particles with Repulsive Interaction

2011-01-18

arxiv.org/abs/1101.3387v1

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 6 figures

Scientific paper

We investigate dynamics of deformable self-propelled particles with a repulsive interaction whose magnitude depends on the relative direction of elongation of a pair of particles. A collective motion of the particles appears in two dimensions. However this ordered state becomes unstable when the particle density exceeds a certain critical threshold and the dynamics becomes disorder. We show by a mean field analysis that this novel transition characteristic to deformability occurs due to a saddle-node bifurcation.

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