期刊
PHYSICAL REVIEW E
卷 62, 期 1, 页码 68-72出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevE.62.68
关键词
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The void percolation threshold is calculated for a distribution of overlapping spheres with equal radii, and for a binary-sized distribution of overlapping spheres, where half of the spheres have radii twice as large as the other half Using systems much larger than previous work, we determine a much more precise value for the percolation thresholds and correlation length exponent. The value of the percolation threshold for the monodisperse case is shown to be 0.0301+/-0.0003, whereas the value for the bidisperse case is shown to be p(c) = 0.0287+/-0.0005. The fact that these are significantly different is in contrast with previous, less precise works that speculated that the threshold might be universal with respect to sphere size distribution.
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