Criterion for phase separation in one-dimensional driven systems |
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Authors: | Kafri Y Levine E Mukamel D Schütz G M Török J |
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Institution: | Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, Israel 76100. |
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Abstract: | 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. |
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