Interplay between an absorbing phase transition and synchronization in a driven granular system

by Raphäel Maire (LPS Université Paris-Saclay)

Monday 15 Apr 2024, 12:00 → 13:00 Europe/Rome

Aula 5A (Dip. di Fisica - Edificio E. Fermi)

We study a quasi-2d granular system exhibiting an absorbing phase transition in its horizontal dynamics. By varying parameters, the transition can either be continuous or discontinuous based on the emergent degree of synchronization in the vertical motion. The observed phenomenology is investigated numerically using a realistic granular model and a simple coarse-grained model suitable for Event Driven Molecular Dynamics. A kinetic theory provide a rationalization of our findings through an effective non equilibrium thermodynamic potential.