期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 392, 期 4, 页码 612-617出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physa.2012.10.019
关键词
Coupled CTRW; Power law distribution; Gaussian-like distribution; Competition
资金
- National Natural Science Foundation of China [11175021]
A coupled continuous time random walk (CTRW) model is proposed, in which the jump length of a walker is correlated with waiting time. The power law distribution is chosen as the probability density function of waiting time and the Gaussian-like distribution as the probability density function of jump length. Normal diffusion, subdiffusion and superdiffusion can be realized within the present model. It is shown that the competition between long-tailed distribution and correlation of jump length and waiting time will lead to different diffusive behavior. (C) 2012 Elsevier B.V. All rights reserved.
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