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2000 J. Phys. A: Math. Gen. 33 2929-2941 doi: 10.1088/0305-4470/33/15/302
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Faculty of Applied Sciences, Delft University of
Technology,
PO Box 5046, 2600 GA Delft, The Netherlands Instituut Lorentz,
Universiteit Leiden, Niels Bohrweg 2,
Postbus 9506, 2300 RA Leiden, The NetherlandsAbstract. We investigate the critical behaviour of hard-core lattice gases in four, five and six dimensions by means of Monte Carlo simulations. In order to suppress critical slowing down, we use a geometrical cluster Monte Carlo algorithm. In particular, nearest-neighbour-exclusion lattice gases on simple hypercubic lattices are investigated. These models undergo Ising-like ordering transitions where the majority of the lattice-gas particles settle on one of two sublattices. A finite-size-scaling analysis of the simulation data confirms that these lattice gases display classical critical behaviour. The results agree with the renormalization predictions at and above the upper critical dimensionality. In particular, the predicted value of the Binder cumulant is confirmed.
Print publication: Issue 15 (21 April 2000) |
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