Coarsening dynamics of zero-range processes

Claude Godrèche (1) , Jean-Michel Drouffe (1)

1 IPHT - Institut de Physique Théorique - UMR CNRS 3681

We consider a class of zero-range processes exhibiting a condensation transition in the stationary state, with a critical single-site distribution decaying faster than a power law. We present the analytical study of the coarsening dynamics of the system on the complete graph, both at criticality and in the condensed phase. In contrast with the class of zero-range processes with critical single-site distribution decaying as a power law, in the present case the role of finite-time corrections are essential for the understanding of the approach to scaling.

Mots clés: zero-range processes; coarsening; condensation; dynamics

Domaines: Mécanique statistique [cond-mat.stat-mech]; Probabilités [math.PR]

Claude Godrèche, Jean-Michel Drouffe. Coarsening dynamics of zero-range processes. Journal of Physics A: Mathematical and Theoretical, 2017, 50, pp.015005. ⟨10.1088/1751-8113/50/1/015005⟩. ⟨cea-01494434⟩