Fast zonal field dynamo in collisionless kinetic Alfven wave turbulence

被引：22

作者：

Gruzinov, I ^{[1
]}

Das, A

Diamond, PH

Smolyakov, A

机构：

[1] Univ Calif San Diego, La Jolla, CA 92093 USA

[2] Inst Plasma Res, Bhat 382428, Gandhinagar, India

[3] Univ Saskatchewan, Saskatoon, SK S7N 5E2, Canada

来源：

PHYSICS LETTERS A | 2002年 / 302卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0375-9601(02)01112-X

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The possibility of fast dynamo action by collisionless kinetic Alfven wave turbulence is demonstrated. The irreversibility necessary to lock in the generated field is provided by electron Landau damping, so the induced electric field does not vanish with resistivity. Mechanisms for self-regulation of the system and the relation of these results to the theory of alpha quenching are discussed. The dynamo-generated fields have symmetry like to that of zonal flows, and thus are termed zonal fields. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：119 / 124

页数：6

共 21 条

[1] Nonlinear saturation of the turbulent alpha effect [J].