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arXiv · 1101.3387

Collective Dynamics of Deformable Self-Propelled Particles with Repulsive Interaction

Yu Itino·Takahiro Ohkuma·Takao Ohta
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Abstract

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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Yu Itino, Takahiro Ohkuma, Takao Ohta. 2011-01-18. Collective Dynamics of Deformable Self-Propelled Particles with Repulsive Interaction. https://doi.org/10.1143/jpsj.80.033001

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