Experimental investigation of electron-acoustic waves in electron plasmas

被引:0
|
作者
Kabantsev, Andrey A. [1 ]
Valentini, F. [2 ,3 ]
Driscoll, C. Fred [1 ]
机构
[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA
[2] Univ Calabria, Dipartmento Fis, I-87036 Arcavacata Di Rende, Italy
[3] Univ Calabria, INFM, I-87036 Arcavacata Di Rende, Italy
来源
基金
美国国家科学基金会;
关键词
BGK modes; phase space vortices; vortex merger cascade; nonneutral plasmasu;
D O I
暂无
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
Electron-acoustic waves have strong linear Landau damping, but are observed as non-linear BGK modes in experiments with pure electron plasmas. The waves have phase velocity v(phi) approximate to 1.3 (v) over bar in agreement with theory, and the longest wavelength BGK states exhibit only relatively weak damping. Shorter wavelength modes exhibit a strong decay instability which can be experimentally controlled.
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页码:13 / 18
页数:6
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