Self-organized criticality, long-time correlations, and the standard transport paradigm

被引:30
|
作者
Krommes, JA [1 ]
机构
[1] Princeton Univ, Princeton, NJ 08543 USA
关键词
D O I
10.1063/1.873995
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
Some aspects of low-frequency, long-wavelength fluctuations are considered. A stochastic model is used to show that power-law time correlations need not arise from self-organized criticality. A formula for the frequency spectrum of uncorrelated, overlapping avalanches is shown to be a special case of the spectral balance equation of renormalized statistical turbulence theory. It is argued that there need be no contradiction between the presence of long-time correlations and the existence of local transport coefficients. (C) 2000 American Institute of Physics. [S1070-664X(00)92605-3].
引用
收藏
页码:1752 / 1758
页数:7
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