Renormalization Group approach to the collective behavior of swarms

by Giulia Pisegna (Università di Roma "La Sapienza")

Wednesday 19 May 2021, 14:30 → 16:30 Europe/Rome

Biological systems are invariably complex, strongly interacting, and out of equilibrium. Recently, it has been found that the dynamical correlation functions of natural swarms surprisingly exhibit the property of dynamical scaling with an anomalous value of the related critical exponent. We investigated the role of the activity in the determination of the dynamical critical properties of out-of-equilibrium active systems in absence of density-velocity coupling. Using a dynamical Renormalization Group approach we discovered the existence of a general trade-off between activity and system’s size in determining the dynamical universality class of homogeneous active matter.

Collegamento:

https://meet.google.com/pip-kvzt-fkz