Monte-Carlo renormalisation group for continuum percolation with excluded-volume interactions
- 1 April 1983
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 16 (5), 1063-1071
- https://doi.org/10.1088/0305-4470/16/5/023
Abstract
The critical properties of a continuum percolation system with excluded-volume interactions are studied by Monte-Carlo position-space renormalisation group methods. The model system considered is comprised of oriented squares of unit side with concentric square hard-core regions of side Lhc. These elements are randomly distributed in a square planar region at a concentration x. For eight values of Lhc, the percolation threshold x* is estimated. Additionally, for two of these eight values, the connectedness-length exponent v is computed. A monotonic dependence of x* upon Lhc is observed and the estimates are close to those of the lattice and freely overlapping continuum percolation problems. However, the accuracy of these estimates is not sufficiently precise to determine whether there is universality of continuum systems with respect to the size of the hard cores.Keywords
This publication has 13 references indexed in Scilit:
- Tests of Universality of Percolation Exponents for a Three-Dimensional Continuum System of Interacting Waterlike ParticlesPhysical Review Letters, 1982
- Continuum percolation in two dimensions: Monte Carlo tests of scaling and universality for non-interacting discsJournal of Physics A: General Physics, 1981
- Critical exponents of two-dimensional Potts and bond percolation modelsJournal of Physics A: General Physics, 1981
- Correlation-length exponent in two-dimensional percolation and Potts modelPhysical Review B, 1981
- Incoherent scattering near a sol gel transitionJournal de Physique Lettres, 1979
- Random perculation in metal-Ge mixturesSolid State Communications, 1978
- Series expansions in a continuum percolation problemJournal of Physics A: General Physics, 1977
- Percolation and cluster distribution. I. Cluster multiple labeling technique and critical concentration algorithmPhysical Review B, 1976
- Percolation and conductivity: A computer study. IPhysical Review B, 1974
- Monte Carlo values for the radial distribution function of a system of fluid hard spheresMolecular Physics, 1971