SELF-ORGANIZED CRITICALITY IN A STICK-SLIP PROCESS

被引：179
|
作者：
FEDER, HJS
FEDER, J
机构：
[1] Department of Physics, University of Oslo, Box 1048, Blindern
来源：
PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 20期
关键词：
D O I：
10.1103/PhysRevLett.66.2669
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The force required to pull sandpaper across a carpet fluctuates. Slips (sudden drops of magnitude M of the force) are observed to have a probability N(M > m) approximately m(-b) with b congruent-to 0.8. The power spectrum of force fluctuations has a low-frequency 1/f behavior. Thus our system reaches a self-organized critical state with fractal scaling in both the spatial and the time domain. We introduce a new nonconservative cellular automaton that exhibits self-organized criticality and describes these observations well.
引用
收藏
页码：2669 / 2672
页数：4
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