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

Abstract

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.

References in corpus (7)

• The large deviation approach to statistical mechanics
• Glassy dynamics of kinetically constrained models
• Dynamic first-order phase transition in kinetically constrained models of glasses
• Simulating rare events in dynamical processes
• Asymmetric exclusion processes with constrained dynamics
• Subdiffusion and dynamical heterogeneities in a lattice glass model
• Large deviations and heterogeneities in a driven kinetically constrained model

Cited by in corpus (4)

• Complexity Analysis of Chaos and Other Fluctuating Phenomena
• The relation between the structure of blocked clusters and the relaxation dynamics in kinetically-constrained models
• Jamming by Shape in Kinetically-Constrained Models
• Finite-density effects in the Fredrickson-Andersen and Kob-Andersen kinetically-constrained models