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

被引：0
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作者：
L. Z. Kahlon
I. Javaid
T. D. Kaladze
机构：
[1] Forman Christian College (A Chartered University),Physics Department
[2] Tbilisi State University,I. Vekua Institute of Applied Mathematics
[3] I. Javakhishvili Tbilisi State University,E. Andronikashvili Institute of Physics
来源：
Brazilian Journal of Physics | 2020年 / 50卷
关键词：
Electron-positron-ion (EPI) plasmas; Drift and ion-acoustic waves; Nonlinear solitary vortices;
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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.
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页码：291 / 297
页数：6
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