Hinsch, Hauke; Frey, Erwin
Bulk-driven nonequilibrium phase transitions in a mesoscopic ring.
In: Physical Review Letters, Vol. 97, Nr. 9:
We study a periodic one-dimensional exclusion process composed of a driven and a diffusive part. In a mesoscopic limit where both dynamics compete we identify bulk-driven phase transitions. We employ mean-field theory complemented by Monte Carlo simulations to characterize the emerging nonequilibrium steady states. Monte Carlo simulations reveal interesting correlation effects that we explain phenomenologically.