Criterion for phase separation in one-dimensional driven systems.
A general criterion for the existence of phase separation in driven density-conserving one-dimensional systems is proposed. It is suggested that phase separation is related to the size dependence of the steady-state currents of domains in the system. A quantitative criterion for the existence of phase separation is conjectured using a correspondence made between driven diffusive models and zero-range processes. The criterion is verified in all cases where analytical results are available, and predictions for other models are provided.
Kafri
Y
Y
Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, Israel 76100.
Levine
E
E
Mukamel
D
D
Schütz
G M
GM
Török
J
J