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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].
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页码:1752 / 1758
页数:7
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