Electromagnetic envelope solitary waves with transverse perturbation in a plasma

被引:2
作者
Borhanian, J. [1 ]
机构
[1] Univ Mohaghegh Ardabili, Fac Sci, Dept Phys, Ardebil, Iran
关键词
LASER-PULSE SOLITONS; MODULATIONAL INSTABILITY; RELATIVISTIC SOLITONS; STABILITY; PROPAGATION; EQUATION; COLLAPSE; LIGHT; FLUID;
D O I
10.1063/1.4802027
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 system of fluid-Maxwell equations governing the two-dimensional dynamics of electromagnetic waves in a plasma is analyzed by means of multiple scale perturbation method. It is shown that the evolution of the amplitude of wave field is governed by a two-dimensional nonlinear Schrodinger equation. The stability of bright envelope solitons is studied using the variational method. It is found that the development of transverse periodic perturbations on bright solitons is faster for a plasma with near critical density. Dynamics of electromagnetic bright solitons is investigated in the long-wave approximation. Our model predicts the appearance of collapse of electromagnetic waves in plasmas and describes the collapse dynamics at initial stages. (C) 2013 AIP Publishing LLC [http://dx.doi.org/10.1063/1.4802027]
引用
收藏
页数:7
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