Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2011-02-16
Physica A 390, 1447 (2011)
Physics
Condensed Matter
Statistical Mechanics
12 pages, 15 figures
Scientific paper
10.1016/j.physa.2010.12.030
By studying its subgraphs, it is argued that the lower critical percolation threshold of the enhanced binary tree (EBT) is bounded as $p_{c1} < 0.355059$, while the upper threshold is bounded both from above and below by 1/2 according to renormalization-group arguments. We also review a correlation analysis in an earlier work, which claimed a significantly higher estimate of $p_{c2}$ than 1/2, to show that this analysis in fact gives a consistent result with this bound. Our result confirms that the duality relation between critical thresholds does not hold exactly for the EBT and its dual, possibly due to the lack of transitivity.
Baek Seung Ki
Minnhagen Petter
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