Nonlinear theory of longitudinal dust-lattice wave in a magnetic dusty plasma crystal

被引：25
|
作者：
Shahmansouri, M. [1 ]
Farokhi, B. [1 ]
机构：
[1] Arak Univ, Dept Phys, Fac Sci, Arak 3815688349, Iran
来源：
JOURNAL OF PLASMA PHYSICS | 2012年 / 78卷
关键词：
D O I：
10.1017/S0022377812000116
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：
The propagation of dust-lattice waves in two-dimensional hexagonal dusty plasma crystals in the presence of an external weak magnetic field is considered. Linear and nonlinear properties of the longitudinal dust-lattice waves are investigated. Dispersion relation, group velocity and evolution equation are found. The influence of the magnetic field on the propagation of dust-lattice waves is studied. We obtain the envelope evolution equation for longitudinal modes in the presence of a weak magnetic field, which is in the form of the Gross-Pitaevskii equation.
引用
收藏
页码：259 / 263
页数：5
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