A new two-stream instability mode in magnetized quantum plasma

被引：38
|
作者：
Haas, Fernando [1 ]
Eliasson, Bengt [2 ]
机构：
[1] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil
[2] Univ Strathclyde, Dept Phys, SUPA, Glasgow G4 0NG, Lanark, Scotland
来源：
PHYSICA SCRIPTA | 2015年 / 90卷 / 08期
基金：
英国工程与自然科学研究理事会;
关键词：
magnetized quantum plasma; two-stream instability; degenerate plasma; LASER; COMPRESSION; FIELDS;
D O I：
10.1088/0031-8949/90/8/088005
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A new transverse mode in a two-stream magnetized quantum plasma is studied by means of a quantum hydrodynamic model, under non-relativistic and ideal Fermi gas assumptions. It is found that Fermi pressure effects induce a minimum cutoff wavelength for instability, unlike the classical case which is unstable for larger wavenumbers. The external magnetic field is also shown to produce a stabilizing effect. Conditions for the applicability of the model and specific parameters for experimental observations are thoroughly discussed.
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页数：5
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