Widom-Rowlinson model

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Simulation snapshot of phase separation in two-dimensions.

The Widom-Rowlinson model (Ref. 1) for mixtures takes the form:

; if and are particles of the same species
if and belong to different species,

where is the hard sphere intermolecular pair potential.

Surface tension

The surface tension of the Widom-Rowlinson model has been studied by:

References

  1. B. Widom and J. S. Rowlinson, "New Model for the Study of Liquid–Vapor Phase Transitions", J. Chem. Phys. 52, pp. 1670-1684 (1970)