The grand canonical ABC model: a reflection asymmetric mean-field Potts model

@article{Barton2011TheGC,
  title={The grand canonical ABC model: a reflection asymmetric mean-field Potts model},
  author={J. C. Barton and Joel L Lebowitz and E. R. Speer},
  journal={Journal of Physics A: Mathematical and Theoretical},
  year={2011},
  volume={44},
  pages={065005}
}
We investigate the phase diagram of a three-component system of particles on a one-dimensional filled lattice, or equivalently of a one-dimensional three-state Potts model, with reflection asymmetric mean-field interactions. The three types of particles are designated as A, B and C. The system is described by a grand canonical ensemble with temperature T and chemical potentials TλA, TλB and TλC. We find that for λA = λB = λC the system undergoes a phase transition from a uniform density to a… 
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