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arXiv 1602.00644cond-mat.stat-mechcond-mat.dis-nn
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渗流中簇数的泛特征

Universal features of cluster numbers in percolation

Stephan Mertens, Iwan Jensen, Robert M. Ziff

摘要:

在临界点$p = p_c$处渗流中的每个位点$n(p)$的簇的数目本身并不是一个普适的量-它取决于晶格和渗流类型(位点或键)。然而,它的许多性质,包括有限尺寸修正,与$p$的标度行为,和振幅比,显示出不同程度的普遍行为。其中一些是通用的,因为行为取决于系统的形状,而不是晶格类型。在这里,我们阐明了$n(p)$的元素的各种水平的普遍性,无论是理论上,并进行了广泛的研究,对几个二维和三维系统,高阶系列分析,蒙特卡罗模拟,精确枚举。我们发现了许多新的结果,包括精确的值为$n(p_c)$几个系统,一个明确的示范的奇异性$n''(p)$,和度量尺度因子。我们利用Sykes和Essam的匹配多项式来寻找格和匹配格的性质之间的确切关系。我们提出了一个标准的绝对度量因子$b$的尺度函数的奇异行为的基础上,而不是以前使用的度量的相对定义。

英文摘要:

The number of clusters per site $n(p)$ in percolation at the critical point $p = p_c$ is not itself a universal quantity---it depends upon the lattice and percolation type (site or bond). However, many of its properties, including finite-size corrections, scaling behavior with $p$, and amplitude ratios, show various degrees of universal behavior. Some of these are universal in the sense that the behavior depends upon the shape of the system, but not lattice type. Here, we elucidate the various levels of universality for elements of $n(p)$ both theoretically and by carrying out extensive studies on several two- and three-dimensional systems, by high-order series analysis, Monte-Carlo simulation, and exact enumeration. We find many new results, including precise values for $n(p_c)$ for several systems, a clear demonstration of the singularity in $n''(p)$, and metric scale factors. We make use of the matching polynomial of Sykes and Essam to find exact relations between properties for lattices and matching lattices. We propose a criterion for an absolute metric factor $b$ based upon the singular behavior of the scaling function, rather than a relative definition of the metric that has previously been used.

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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