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arXiv 0907.0881cond-mat.stat-mechcond-mat.other
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粗糙表面轮廓线的尺度关系

Scaling Relations for Contour Lines of Rough Surfaces

M. A. Rajabpour, S. M. Vaez Allaei

摘要:

平衡和非平衡增长现象,例如,表面生长,一般产生自仿射分布。分析这些分布的统计特性对于理解基本现象的统计力学是必不可少的。在这里,我们分析了等高度环的累积分布的缩放特性(即,轮廓线)的粗糙自仿射表面的回路面积和系统的大小。受库仑气体方法的启发,我们找到了环面积的母函数。有趣的是,我们发现,排序后的循环相对于其周长,齐普夫般的缩放关系举行的排名循环。数值模拟,以证明所提出的标度关系。

英文摘要:

Equilibrium and non-equilibrium growth phenomena, e.g., surface growth, generically yields self-affine distributions. Analysis of statistical properties of these distributions appears essential in understanding statistical mechanics of underlying phenomena. Here, we analyze scaling properties of the cumulative distribution of iso-height loops (i.e., contour lines) of rough self-affine surfaces in terms of loop area and system size. Inspired by the Coulomb gas methods, we find the generating function of the area of the loops. Interestingly, we find that, after sorting loops with respect to their perimeters, Zipf-like scaling relations hold for ranked loops. Numerical simulations are also provided in order to demonstrate the proposed scaling relations.

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