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arXiv 0901.0483cond-mat.stat-mech
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双曲格上的渗流

Percolation on hyperbolic lattices

Seung Ki Baek, Petter Minnhagen, Beom Jun Kim

摘要:

利用有限尺寸标度方法对双曲晶格上的渗流相变进行了数值研究。两个不同的渗流阈值的存在被验证。在较低的阈值,一个无界的集群出现,并从中间到达边界。该转换与Cayley树的相应转换具有相同的类型和相同的有限尺寸标度属性。另一方面,在上阈值处,形成单个无界簇,其包围所有其他簇,并且占据体积和边界连接的有限分数。这个上限阈值的有限尺寸标度属性不同于Cayley树的那些,并且获得了两个临界指数。结果表明,双曲格的渗流转变形成了一个普适类。

英文摘要:

The percolation transitions on hyperbolic lattices are investigated numerically using finite-size scaling methods. The existence of two distinct percolation thresholds is verified. At the lower threshold, an unbounded cluster appears and reaches from the middle to the boundary. This transition is of the same type and has the same finite-size scaling properties as the corresponding transition for the Cayley tree. At the upper threshold, on the other hand, a single unbounded cluster forms which overwhelms all the others and occupies a finite fraction of the volume as well as of the boundary connections. The finite-size scaling properties for this upper threshold are different from those of the Cayley tree and two of the critical exponents are obtained. The results suggest that the percolation transition for the hyperbolic lattices forms a universality class of its own.

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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