Condensation transition in a model with attractive particles and non-local hops

Details Condensation transition in a model with attractive particles and non-local hops Condensation transition in a model with attractive particles and non-local hops

2009-10-12

arxiv.org/abs/0910.2165v1

J. Stat. Mech. (2009) P10003

Physics

Condensed Matter

Statistical Mechanics

11 Pages, 6 Figures. Published in Journal of Statistical Mechanics: Theory and Experiment

Scientific paper

We study a one dimensional nonequilibrium lattice model with competing features of particle attraction and non-local hops. The system is similar to a zero range process (ZRP) with attractive particles but the particles can make both local and non-local hops. The length of the non-local hop is dependent on the occupancy of the chosen site and its probability is given by the parameter $p$. Our numerical results show that the system undergoes a phase transition from a condensate phase to a homogeneous density phase as $p$ is increased beyond a critical value $p_c$. A mean-field approximation does not predict a phase transition and describes only the condensate phase. We provide heuristic arguments for understanding the numerical results.

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