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题名: Dynamical continuous time random walk
作者: Liu, J;  Yang, B;  Chen, XS;  Bao, JD
刊名: EUROPEAN PHYSICAL JOURNAL B
出版日期: 2015
卷号: 88, 期号:4, 页码:88
学科分类: Physics
DOI: http://dx.doi.org/10.1140/epjb/e2015-60056-y
通讯作者: Liu, J (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: We consider a continuous time random walk model in which each jump is considered to be dynamical process. Dissipative launch velocity and hopping time in each jump is the key factor in this model. Within the model, normal diffusion and anomalous diffusion is realized theoretically and numerically in the force free potential. Besides, external potential can be introduced naturally, so the random walker's behavior in the linear potential and quartic potential is discussed, especially the walker with Levy velocity in the quartic potential, bimodal behavior of the spatial distribution is observed, it is shown that due to the inertial effect induced by damping term, there exists transition from unimodality to bimodality for the walker's spatial stationary distribution.
类目[WOS]: Physics, Condensed Matter
关键词[WOS]: CHAPMAN-KOLMOGOROV EQUATION ;  FOKKER-PLANCK EQUATIONS ;  ANOMALOUS DIFFUSION ;  LEVY FLIGHTS ;  FRACTIONAL DIFFUSION ;  THERMAL-EQUILIBRIUM ;  DISORDERED MEDIA ;  EXTERNAL FIELDS ;  FORCE-FIELDS ;  TRANSPORT
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11121403]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21035
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Liu, J,Yang, B,Chen, XS,et al. Dynamical continuous time random walk[J]. EUROPEAN PHYSICAL JOURNAL B,2015,88(4):88.
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