Electrostatic Nonlinear Structures in Dissipative Electron-Positron-Ion Quantum Plasmas

被引：20

作者：

Khan, S. A. ^{[1
,3
]}

Haque, Q. ^{[2
]}

机构：

[1] COMSATS Inst Informat Technol, Dept Phys, Islamabad, Pakistan

[2] PINSTECH, Theoret Plasma Phys Div, Islamabad, Pakistan

[3] Dept Phys, Ajk, Pakistan

来源：

CHINESE PHYSICS LETTERS | 2008年 / 25卷 / 12期

关键词：

Positrons;

D O I：

10.1088/0256-307X/25/12/040

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Low frequency (in comparison to ion plasma frequency) ion-acoustic shocks and solitons in superdense electron-positron-ion quantum plasmas are studied. The quantum hydrodynamic model is used incorporating quantum Bohm forces and Fermi-Dirac statistical corrections to derive the deformed Korteweg de Vries-Burgers (dKdVB) equation in weakly nonlinear limit. The travelling wave solution of dKdVB equation is presented and results are discussed in different limits. It is found that shock height increases with increase of quantum pressure, positron concentration and dissipation. Further, it is seen that the width of soliton decreases with increase of quantum pressure.

引用

页码：4329 / 4332

页数：4

共 50 条

[1] Nonlinear Dispersive and Dissipative Electrostatic Structures in Two-Dimensional Electron-Positron-Ion Quantum Plasma
Nabakumar Ghosh
Biswajit Sahu
CommunicationsinTheoreticalPhysics, 2019, 71 (02) : 237 - 242
[2] Nonlinear Dispersive and Dissipative Electrostatic Structures in Two-Dimensional Electron-Positron-Ion Quantum Plasma
Ghosh, Nabakumar
Sahu, Biswajit
COMMUNICATIONS IN THEORETICAL PHYSICS, 2019, 71 (02) : 237 - 242
[3] Nonlinear electrostatic drift waves in dense electron-positron-ion plasmas
Haque, Q.
Mahmood, S.
Mushtaq, A.
PHYSICS OF PLASMAS, 2008, 15 (08)
[4] Nonlinear excitations for the positron acoustic shock waves in dissipative nonextensive electron-positron-ion plasmas
Saha, Asit
PHYSICS OF PLASMAS, 2017, 24 (03)
[5] Pressure anisotropy effects on nonlinear electrostatic excitations in magnetized electron-positron-ion plasmas
Adnan, Muhammad
Williams, Gina
Qamar, Anisa
Mahmood, Shahzad
Kourakis, Ioannis
EUROPEAN PHYSICAL JOURNAL D, 2014, 68 (09):
[6] Pressure anisotropy effects on nonlinear electrostatic excitations in magnetized electron-positron-ion plasmas
Muhammad Adnan
Gina Williams
Anisa Qamar
Shahzad Mahmood
Ioannis Kourakis
The European Physical Journal D, 2014, 68
[7] Nonlinear drift waves in electron-positron-ion plasmas
Saleem, H.
Haque, Q.
Vranješ, J.
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2003, 67 (5 2): : 1 - 057402
[8] On the existence and stability of electrostatic structures in non-Maxwellian electron-positron-ion plasmas
Williams, G.
Kourakis, I.
PHYSICS OF PLASMAS, 2013, 20 (12)
[9] Electrostatic solitons in unmagnetized hot electron-positron-ion plasmas
Mahmood, S.
Ur-Rehman, H.
PHYSICS LETTERS A, 2009, 373 (26) : 2255 - 2259
[10] Nonlinear drift waves in electron-positron-ion plasmas
Saleem, H
Haque, Q
Vranjes, J
PHYSICAL REVIEW E, 2003, 67 (05):

← 1 2 3 4 5 →