paper

First- and second-order phase transitions in a driven lattice gas with nearest-neighbor exclusion

arXiv:cond-mat/0009339 · doi:10.1103/PhysRevE.64.016124

Abstract

A lattice gas with infinite repulsion between particles separated by lattice spacing, and nearest-neighbor hopping dynamics, is subject to a drive favoring movement along one axis of the square lattice. The equilibrium (zero drive) transition to a phase with sublattice ordering, known to be continuous, shifts to lower density, and becomes discontinuous for large bias. In the ordered nonequilibrium steady state, both the particle and order-parameter densities are nonuniform, with a large fraction of the particles occupying a jammed strip oriented along the drive. The relaxation exhibits features reminiscent of models of granular and glassy materials.

8 pages, 5 figures; results due to bad random number generator corrected; significantly revised conclusions

References in corpus (3)

Cited by in corpus (17)