The model consists of point particles of two types with soft-core intertype repulsion. There are two parameters: z > 0, the activity, which governs the particle density, and ß > 0, the inverse temperature.
The simulations use a Propp-Wilson-variant of a Gibbs sampler.
For more mathematical background see Section 4.4 of this paper (ps-file) .
(for system requirements and description click here)
The repulsive intertype potential is J(x-y)= (1-|x-y|)^2 for
The linear size of the window is L= 20 .
Outside of the window is a boundary condition consisting of a Poisson crowd of white particles.
Link to David Wilson's webpage on perfect simulation