Asymmetric exclusion model with two species: Spontaneous symmetry breaking

@article{Evans1995AsymmetricEM,
  title={Asymmetric exclusion model with two species: Spontaneous symmetry breaking},
  author={Martin R Evans and Damien Paul Foster and Claude Godr{\`e}che and David Mukamel},
  journal={Journal of Statistical Physics},
  year={1995},
  volume={80},
  pages={69-102}
}
A simple two-species asymmetric exclusion model is introduced. It consists of two types of oppositely charged particles driven by an electric field and hopping on an open chain. The phase diagram of the model is calculated in the meanfield approximation and by Monte Carlo simulations. Exact solutions are given for special values of the parameters defining its dynamics. The model is found to exhibit two phases in which spontaneous symmetry breaking takes place, where the two currents of the two… 
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