Relevance of Metric-Free Interactions in Flocking Phenomena

2010/07/31 by Francesco Ginelli, Hugues Chaté · 1 citation
Physics and Astronomy · #cond-mat.stat-mech #cond-mat.soft

paper · pdf · doi:10.1103/physrevlett.105.168103

To appear on Physical Review Letters

arxiv created 2010/09/16 · arxiv updated 2015/05/19

Abstract

We show that the collective properties of self-propelled particles aligning with their "topological" (Voronoi) neighbors are qualitatively different from those of usual models where metric interaction ranges are used. This relevance of metric-free interactions, shown in a minimal setting, indicate that realistic models for the cohesive motion of cells, bird flocks, and fish schools may have to incorporate them, as suggested by recent observations.

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