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题名: Scaling Properties of Field-Induced Superdiffusion in Continuous Time Random Walks
作者: Burioni, R ;  Gradenigo, G ;  Sarracino, A ;  Vezzani, A ;  Vulpiani, A
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2014
卷号: 62, 期号:4, 页码:514-520
关键词: STRONG ANOMALOUS DIFFUSION ;  MODELS
学科分类: Physics
通讯作者: Burioni, R (reprint author), Univ Parma, Dipartimento Fis & Sci Terra, Viale GP Usberti 7-A, I-43126 Parma, Italy.
部门归属: [Burioni, R. ;  Vezzani, A.] Univ Parma, Dipartimento Fis & Sci Terra, I-43126 Parma, Italy ;  [Burioni, R. ;  Vezzani, A.] Ist Nazl Fis Nucl, Grp Collegato Parma, I-43126 Parma, Italy ;  [Gradenigo, G.] CEA Saclay, Inst Theoret Phys, F-91191 Gif Sur Yvette, France ;  [Gradenigo, G.] Univ Paris 11, CNRS, Lab Phys Theor & Modeles Stat, F-91405 Orsay, France ;  [Sarracino, A.] Univ Roma La Sapienza, ISC CNR, I-00185 Rome, Italy ;  [Sarracino, A.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy ;  [Sarracino, A.] Univ Paris 06, CNRS, Lab Phys Theor & Moatiere Condensee, F-75255 Paris, France ;  [Vezzani, A.] CNR Nanosci, Ctr S3, I-41125 Modena, Italy ;  [Vulpiani, A.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy ;  [Vulpiani, A.] ISC CNR, I-00185 Rome, Italy ;  [Sarracino, A. ;  Vulpiani, A.] Kavil Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We consider a broad class of Continuous Time Random Walks (CTRW) with large fluctuations effects in space and time distributions: a random walk with trapping, describing subdiffusion in disordered and glassy materials, and a Levy walk process, often used to model superdiffusive effects in inhomogeneous materials. We derive the scaling form of the probability distributions and the asymptotic properties of all its moments in the presence of a field by two powerful techniques, based on matching conditions and on the estimate of the contribution of rare events to power-law tails in a field.
资助者: Granular Chaos project - Italian MIUR [RIBD08Z9JE]
收录类别: SCI
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15635
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Recommended Citation:
Burioni, R,Gradenigo, G,Sarracino, A,et al. Scaling Properties of Field-Induced Superdiffusion in Continuous Time Random Walks[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2014,62(4):514-520.
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