SELF-ORGANIZED CRITICALITY IN VECTOR AVALANCHE AUTOMATA

被引：28

作者：

MCNAMARA, B ^{[1
]}

WIESENFELD, K ^{[1
]}

机构：

[1] GEORGIA INST TECHNOL, SCH PHYS, ATLANTA, GA 30332 USA

来源：

PHYSICAL REVIEW A | 1990年 / 41卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.41.1867

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new class of cellular automata is observed to evolve to a self-organized critical state. These vector automata obey a threshold relaxation condition that depends on the gradient of a scalar field, which is locally conserved except at the system boundaries. Both square and triangular lattices are studied and lead to virtually identical statistics; however, a particular (and natural) choice of boundary shape for the square lattice leads to trivial dynamics characteristic of a minimally stable configuration. © 1990 The American Physical Society.

引用

页码：1867 / 1873

页数：7

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