期刊论文

Yang Chun-Bin（杨纯斌）

英文

理论物理

0253-6102

2008

49

1

249-251

10.1088/0253-6102/49/1/52

The project supported in part by National Natural Science Foundation of China under Grant Nos. 10635020 and 10475032, and the Major Project of the Ministry of Education of China under Grant No. 306022.

本校为第一且通讯机构

The origin of power-law distributions in self-organized criticality is investigated by treating the variation of the number of active sites in the system as a stochastic process. An avalanche is then regarded as a first-return random walle process in a one-dimensional lattice. We assume that the variation of the number of active sites has three possibilities in each update: to increase by 1 with probability f1, to decrease by 1 with probability f2, or remain unchanged with probability 1 - f1 - f 2. This mimics the dynamics in the system. Power-...

The origin of power-law distributions in self-organized criticality is investigated by treating the variation of the number of active sites in the system as a stochastic process.An avalanche is then regarded as a first-return random walk process in a one-dimensional lattice.We assume that the variation of the number of active sites has three possibilities in each update:to increase by 1 with probability f1,to decrease by 1 with probability f2,or remain unchanged with probability 1-f1-f2.This mimics the dynamics in the system.Power-law distribut...