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

Original · EN

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 pc. 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.