Clustering and anisotropic correlated percolation in polar flocks

Nikos Kyriakopoulos, Hugues Chate, Francesco G. Ginelli (Corresponding Author)

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Abstract

We study clustering and percolation phenomena in the Vicsek model, taken here in its capacity of prototypical model for dry aligning active matter. Our results show that the order-disorder transition is not related in any way to a percolation transition, contrary to some earlier claims. We study geometric percolation in each of the phases at play, but we mostly focus on the ordered Toner-Tu phase, where we find that the long-range correlations of density fluctuations give rise to a novel anisotropic percolation transition.

Original languageEnglish
Article number022606
JournalPhysical Review. E, Statistical, Nonlinear and Soft Matter Physics
Volume100
Issue number2
DOIs
Publication statusPublished - 28 Aug 2019

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Keywords

  • FLUCTUATIONS
  • BEHAVIOR

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Statistical and Nonlinear Physics
  • Statistics and Probability

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