Formation of Nonlinear Solitary Vortical Structures by Drift and Ion-Acoustic Waves in Electron-Positron-Ion Plasmas

被引：1
|
作者：
Kahlon, L. Z. [1 ]
Javaid, I. [1 ]
Kaladze, T. D. [2 ,3 ]
机构：
[1] Forman Christian Coll, Dept Phys, Ferozpur Rd, Lahore 54600, Pakistan
[2] Tbilisi State Univ, I Vekua Inst Appl Math, 2 Univ Str, GE-0186 Tbilisi, Georgia
[3] I Javakhishvili Tbilisi State Univ, E Andronikashvili Inst Phys, GE-0128 Tbilisi, Georgia
来源：
BRAZILIAN JOURNAL OF PHYSICS | 2020年 / 50卷 / 03期
关键词：
Electron-positron-ion (EPI) plasmas; Drift and ion-acoustic waves; Nonlinear solitary vortices;
D O I：
10.1007/s13538-020-00745-y
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
To describe the nonlinear propagation of electrostatic drift and ion-acoustic waves (DIAWs), the generalized Hasegawa-Mima equation containing both vector (Jacobian) and scalar (Korteweg-de Vries type) nonlinearities is obtained for electron-positron-ion (EPI) plasmas. In addition, density and temperature non-homogeneities of electrons and positrons are taken into account. Appropriate set of 3D equations consisting of generalized Hasegawa-Mima equation for the electrostatic potential and equation of parallel to magnetic field motion of ions are obtained to describe the formation of coherent dipole and large-scale monopole vortices.
引用
收藏
页码：291 / 297
页数：7
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