Rigid backbone: A new geometry for percolation.
Rigid backbone: A new geometry for percolation.
复制标题
刚性骨架:一种新的渗透几何结构。
DOI:
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发表时间:
1986
影响因子:
8.6
通讯作者:
Tremblay
中科院分区:
文献类型:
--
作者:
Day;Tremblay
understood in both cases from the "nodes-linksblobs" picture'~ of percolation clusters. In fact, it is fair to say that in the vast majority of percolation problems encountered to date, even continuum percolation, '6 the basic geometric features of the percolation clusters, such as the scaling of the number of singly connected bonds, are identical and the differences arise only at the level of the "dynamics. " For the class of models of interest here, however, geometric connection (the existence of a bond) does not imply complete elastic connection because the number of constraints associated with the existence of a bond is smaller than the number of degrees of freedom associated with the sites it connects. The percolation threshold is higher8 than that of the corresponding standard percolation problem. Thorpe6 has suggested the name "rigidity percolation" for this class of models, distinguishing it from the "elasticity percolation" universality class mentioned above. In this paper, we study the simplest rigidity-percolation model, namely the two-dimensional central-force model. 8 Ex