1205.1182 (Francesco Turci et al.)

Dynamical heterogeneities in a two dimensional driven glassy model:
current fluctuations and finite size effects    [PDF]

Francesco Turci, Estelle Pitard

In this article, we demonstrate that in a transport model of particles with kinetic constraints, long-lived spatial structures are responsible for the blocking dynamics and the decrease of the current at strong driving field. Coexistence between mobile and blocked regions can be anticipated by a first-order transition in the large deviation function for the current. By a study of the system under confinement, we are able to study finite-size effects and extract a typical length between mobile regions.

View original: http://arxiv.org/abs/1205.1182