The dispersion relation for electrostatic fluctuations in weakly inhomogeneous plasmas

被引：1
|
作者：
Silveira, OJG
Ziebell, LF
Schneider, RS
Gaelzer, R
机构：
[1] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil
[2] Univ Fed Pelotas, Inst Fis & Matemat, BR-96010900 Pelotas, RS, Brazil
来源：
BRAZILIAN JOURNAL OF PHYSICS | 2004年 / 34卷 / 4B期
关键词：
D O I：
10.1590/S0103-97332004000800024
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We compare and discuss several approximations to the dispersion relation for electrostatic waves in inhomogeneous plasmas, either obtained directly from Poisson's equation, or from the dielectric constant obtained using a dielectric tensor derived using the plane wave approximation, or from the dielectric constant derived using the effective dielectric tensor.
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页码：1638 / 1644
页数：7
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