Effective Jump Length of Coupled Continuous Time Random Walk

被引：6

作者：

Liu Jian ^{[1
]}

Bao Jing-Dong ^{[1
]}

机构：

[1] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2013年 / 30卷 / 02期

基金：

中国国家自然科学基金;

关键词：

ANOMALOUS DIFFUSION; DISORDERED MEDIA; LEVY FLIGHTS; LATTICES; EQUATIONS; TRANSPORT; DYNAMICS; FIELDS;

D O I：

10.1088/0256-307X/30/2/020202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The concept effective jump length is proposed. Due to the joint probability density function of jump length and waiting time, it is complicated to distinguish the diffusion types. However, we calculate the probability density function of effective jump length for the coupled continuous time random walk model we proposed previously. The mean square displacements deduced are coincident with the known results. More importantly, we find that the anomalous diffusion induced by the coupled model is equivalent to the competition between long jump length and long waiting time.

引用

页数：3

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