Noise-induced transition from translational to rotational motion of swarms

Phys Rev E Stat Nonlin Soft Matter Phys. 2005 May;71(5 Pt 1):051904. doi: 10.1103/PhysRevE.71.051904. Epub 2005 May 6.


We consider a model of active Brownian agents interacting via a harmonic attractive potential in a two-dimensional system in the presence of noise. By numerical simulations, we show that this model possesses a noise-induced transition characterized by the breakdown of translational motion and the onset of swarm rotation as the noise intensity is increased. Statistical properties of swarm dynamics in the weak noise limit are further analytically investigated.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Behavior, Animal / physiology*
  • Computer Simulation
  • Humans
  • Models, Biological*
  • Models, Statistical
  • Motion
  • Movement / physiology*
  • Population Dynamics*
  • Rotation
  • Social Behavior