Percolation-like transition in DLA with two species

被引：4
|
作者：
Debierre, JM
Albinet, G
机构：
[1] UNIV AIX MARSEILLE 1,FAC SCI & TECH ST JEROME,INST RECH PHENOMENES HORS EQUILIBRE,F-13397 MARSEILLE 20,FRANCE
[2] UNIV AIX MARSEILLE 2,FAC SCI & TECH ST JEROME,INST RECH PHENOMENES HORS EQUILIBRE,F-13397 MARSEILLE 20,FRANCE
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1996年 / 29卷 / 09期
关键词：
D O I：
10.1088/0305-4470/29/9/007
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We introduce a DLA model with two species in order to simulate the growth of alternate clusters. We perform intensive numerical simulations in two dimensions in which the proportions of the two species are varied. A critical point, analogous to a percolation threshold, is found and a new class of critical exponents is obtained for this transition. Within numerical accuracy, the fractal dimension of the clusters is found to be the same as in the usual DLA model, independent of the species concentrations. Possible connections with the growth of two-dimensional ionic crystals are discussed.
引用
收藏
页码：1905 / 1913
页数：9
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