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arXiv 0910.4340cond-mat.stat-mech
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对“增强二叉树中两阶段渗流转变的蒙特卡罗模拟研究”的评论

Comment on `Monte Carlo simulation study of the two-stage percolation transition in enhanced binary trees'

Seung Ki Baek, Petter Minnhagen, Beom Jun Kim

摘要:

增强型二叉树(EBT)是一种具有两个渗流阈值$p_{c1}$和$p_{c2}$的非传递图,其渗流阈值为$p_{c1}<p_{c2}$ .我们的Monte Carlo研究表明,第二个阈值$p_{c2}$明显低于Nogawa和Hasegawa最近的声明(J. Phys. A:Math. Theor. { \bf 42}(2009)145001)。这意味着EBT的$p_{c2}$不服从对偶图$p_{c2}+\overline{p}_{c1}=1$的阈值的对偶关系,这是一个传递的,不顺从的,有一端的平面图的属性。在正则双曲格中,这个关系变成了一个不等式$p_{c2}+\overline{p}_{c1}<1$。我们还发现,临界行为是很好地描述了以前发现的正则双曲格的标度形式。

英文摘要:

The enhanced binary tree (EBT) is a nontransitive graph which has two percolation thresholds $p_{c1}$ and $p_{c2}$ with $p_{c1}<p_{c2}$. Our Monte Carlo study implies that the second threshold $p_{c2}$ is significantly lower than a recent claim by Nogawa and Hasegawa (J. Phys. A: Math. Theor. {\bf 42} (2009) 145001). This means that $p_{c2}$ for the EBT does not obey the duality relation for the thresholds of dual graphs $p_{c2}+\overline{p}_{c1}=1$ which is a property of a transitive, nonamenable, planar graph with one end. As in regular hyperbolic lattices, this relation instead becomes an inequality $p_{c2}+\overline{p}_{c1}<1$. We also find that the critical behavior is well described by the scaling form previously found for regular hyperbolic lattices.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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