Rogue waves for Kadomstev-Petviashvili equation in electron-positron-ion plasma

被引：14
|
作者：
El-Wakil, S. A. [1 ]
Abulwafa, Essam M. [1 ]
Elhanbaly, A. [1 ]
El-Shewy, E. K. [1 ]
机构：
[1] Mansoura Univ, Dept Phys, Theoret Phys Grp, Fac Sci, Mansoura 35516, Egypt
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2014年 / 353卷 / 02期
关键词：
Electron-positron-ion plasmas; Ion-acoustic waves; Kappa distribution; Kadomtsev-Petviashvili equation; Nonlinear Schrodinger equation; Rogue waves; ACOUSTIC SOLITARY WAVES; DUSTY PLASMA; SPEED; SHAPE;
D O I：
10.1007/s10509-014-2061-1
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The nonlinear ion-acoustic waves in plasma having excess super-thermal electrons and positrons have been investigated. Reductive perturbation method is used to obtain a Kadomstev-Petviashvili equation describing the system. The dynamics of the modulationally unstable wave packets described by the Kadomstev-Petviashvili equation gives rise to the formation of rogue excitation that is described by a nonlinear Schrodinger equation. The dependence of rogue waves profiles on the system parameters investigated numerically. The result of the present investigation may be applicable to some plasma environments, such as galactic clusters, interstellar medium.
引用
收藏
页码：501 / 506
页数：6
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