Abstrakti
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.
| Alkuperäiskieli | Englanti |
|---|---|
| Artikkeli | 022606 |
| Sivut | 1-12 |
| Sivumäärä | 12 |
| Julkaisu | Physical Review E |
| Vuosikerta | 100 |
| Numero | 2 |
| DOI - pysyväislinkit | |
| Tila | Julkaistu - 28 elok. 2019 |
| OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
Rahoitus
We have benefited from discussions with F. Perez-Reche. N.K. and F.G. acknowledge support from the Marie Curie Career Integration Grant No. PCIG13-GA-2013-618399. F.G. also acknowledges support from EPSRC First Grant No. EP/K018450/1.