Resonance broadening induced nonlinear saturation of kinetic Alfvén turbulence in the interplanetary plasma

被引：0
|
作者：
Medvedev, M.V. [1 ,2 ]
Diamond, P.H. [1 ,3 ]
机构：
[1] Physics Department, Univ. of California at San Diego, San Diego, CA 92093-0319, United States
[2] Institute for Nuclear Fusion, Russ. Res. Ctr. Kurchatov Institute, Moscow 123182, Russia
[3] General Atomics, San Diego, CA 92122, United States
来源：
Physics Letters, Section A: General, Atomic and Solid State Physics | 1996年 / 219卷 / 5-6期
关键词：
Plasma stability - Angular distribution - Electric fields - Cyclotrons - Stochastic systems - Turbulence;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The saturation of ion-cyclotron Alfvén turbulence excited by beam particles is investigated using the resonance broadening theory. The stochastic scattering which decorrelates particles, includes both random acceleration by electric fields and a turbulent magnetic mirroring effect. Turbulent mirroring is shown to yield non-Gaussian corrections to the orbits even if the random electric and magnetic fields are Gaussian. The predicted steady-state turbulence level exhibits a peaked angular distribution, with a maximum near Θ 60°.
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页码：293 / 298
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