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Article Dans Une Revue Physical Review E Année : 2019

Clustering and anisotropic correlated percolation in polar flocks

Résumé

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 an anisotropic percolation transition.

Dates et versions

cea-04344819 , version 1 (14-12-2023)

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Nikos Kyriakopoulos, Hugues Chaté, Francesco Ginelli. Clustering and anisotropic correlated percolation in polar flocks. Physical Review E , 2019, 100 (2), pp.022606. ⟨10.1103/PhysRevE.100.022606⟩. ⟨cea-04344819⟩
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