Cohesive motion in one-dimensional flocking

Details Cohesive motion in one-dimensional flocking Cohesive motion in one-dimensional flocking

2011-11-17

arxiv.org/abs/1111.4240v1

J. Phys. A: Math. Theor. 45 (2012) 035003

Physics

Condensed Matter

Statistical Mechanics

24 pages, 11 figures

Scientific paper

A one-dimensional rule-based model for flocking, that combines velocity alignment and long-range centering interactions, is presented and studied. The induced cohesion in the collective motion of the self-propelled agents leads to a unique group behaviour that contrasts with previous studies. Our results show that the largest cluster of particles, in the condensed states, develops a mean velocity slower than the preferred one in the absence of noise. For strong noise, the system also develops a non-vanishing mean velocity, alternating its direction of motion stochastically. This allows us to address the directional switching phenomenon. The effects of different sources of stochasticity on the system are also discussed.

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