Fluctuation-dissipation process without a time scale

被引:16
作者
Annunziato, M
Grigolini, P
Riccardi, J
机构
[1] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy
[2] Univ N Texas, Ctr Nonlinear Sci, Denton, TX 76203 USA
[3] CNR, Ist Biofis, I-56127 Pisa, Italy
[4] ENEL SpA, Struttura Ric, Area Generaz, I-56100 Pisa, Italy
来源
PHYSICAL REVIEW E | 2000年 / 61卷 / 05期
关键词
D O I
10.1103/PhysRevE.61.4801
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
We study the influence of a dissipation process on diffusion dynamics triggered by fluctuations with long-range correlations. We make the assumption that the perturbation process involved is of the same kind as those recently studied numerically and theoretically, with a good agreement between theory and numerical treatment. As a result of this assumption the equilibrium distribution departs from the ordinary canonical distribution. The distribution tails are truncated, the distribution border is signaled by sharp peaks, and, in the weak dissipation limit, the central distribution body becomes identical to a truncated Levy distribution.
引用
收藏
页码:4801 / 4808
页数:8
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