Séminaire de Probabilités commun ICJ/UMPA

Mixing time of the Asymmetric Zero Range process on the segment

by Ons Rameh

Europe/Paris
435 (ENS de Lyon)

435

ENS de Lyon

Description

 In this talk, we shall discuss the mixing time of the Asymmetric Zero Range process (AZRP) with non-decreasing jump rates on the segment. We will first study the hydrodynamic limit starting from the configuration where all particles are gathered on the left-most site. The macroscopic equilibrium time gives a lower bound on the mixing time. We will show the sharpness of this estimate when the system is asymmetric enough, which establishes the cut-off phenomenon. This extends earlier results of Labbe and Lacoin in the context of the asymmetric simple exclusion process.