Collision dynamics of traveling bands in systems of deformable self-propelled particles

Sadato Yamanaka and Takao Ohta
Phys. Rev. E 90, 042927 – Published 29 October 2014

Abstract

We study the soliton-like character of traveling bands in systems of interacting deformable self-propelled particles in two dimensions. The collision dynamics of the model in which migration velocity increases with increasing local density is investigated numerically by changing the relaxation rate of deformations. The bands are unstable upon head-on collisions for larger relaxation rates. This clearly indicates that deformability plays a crucial role of the soliton-like behavior.

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  • Received 30 July 2014

DOI:https://doi.org/10.1103/PhysRevE.90.042927

©2014 American Physical Society

Authors & Affiliations

Sadato Yamanaka1 and Takao Ohta2,3

  • 1Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan
  • 2Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
  • 3Toyota Physical and Chemical Research Institute, Nagakute, Aichi 480-1192, Japan

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Issue

Vol. 90, Iss. 4 — October 2014

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