Beat-wave resonant down scattering of diocotron and Kelvin modes

被引：11
|
作者：
Mattor, N [1 ]
Chang, BT [1 ]
Mitchell, TB [1 ]
机构：
[1] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 04期
关键词：
D O I：
10.1103/PhysRevLett.96.045003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A theory is presented of beat-wave resonant down scattering of two-dimensional diocotron (or Kelvin) modes, in which modes down scatter to lower azimuthal mode number. The phenomenon is a fluid analogue to nonlinear Landau damping. The principal new result is a quantitative prediction of the scattering rate. The predicted rates and scalings are close to those observed in experiments with magnetized electron columns.
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页数：4
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