Short-time dynamics in active systems: the Vicsek model

Autor:	Puzzo, M. Leticia Rubio, Loscar, Ernesto S., De Virgiliis, Andres, Grigera, Tomas S.
Rok vydání:	2022
Předmět:	Condensed Matter - Statistical Mechanics Physics - Biological Physics
Druh dokumentu:	Working Paper
DOI:	10.1088/1361-648X/ac7429
Popis:	We study the short-time dynamics (STD) of the Vicsek model with vector noise. The study of STD has proved to be very useful in the determination of the critical point, critical exponents, and spinodal points in equilibrium phase transitions. Here we aim to test its applicability in active systems. We find that, despite the essential non-equilibrium characteristics of the VM (absence of detailed balance, activity), the STD presents qualitatively the same phenomenology as in equilibrium systems. From the STD one can distinguish whether the transition is continuous or discontinuous (which we have checked also computing the Binder cumulant). When the transition is continuous, one can determine the critical point and the critical exponents. Comment: 12 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2205.04436 Zobrazit plný text záznamu View this record from Arxiv