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Title: Electrostatic drift-wave instability in a nonuniform quantum magnetoplasma with parallel velocity shear flows

Abstract

The propagation of high and low frequency (in comparison with the cyclotron frequency) electrostatic drift-waves is investigated in a nonuniform, dense magnetoplasma (composed of electrons and ions), in the presence of parallel shear flow, by employing the quantum magnetohydrodynamic (QMHD) model. Using QMHD model, a new set of equations is presented in order to investigate linear properties of electrostatic drift-waves with sheared plasma flows for dense plasmas. In this regard, dispersion relations for coupled electron-thermal and drift-ion acoustic modes are derived and several interesting limiting cases are discussed. For instance, it is found that sheared ion flow parallel to the external magnetic field can drive the quantum drift-ion acoustic wave unstable, etc. The present investigation may have relevance in dense astrophysical environments where quantum effects are significant.

Authors:
;  [1];  [2]
  1. Department of Physics, Theoretical Plasma Physics Group, Quaid-i-Azam University, Islamabad 45320 (Pakistan)
  2. Theoretical Plasma Physics Division, PINSTECH, P.O. Box. Nilore, Islamabad 44000, Pakistan and National Center for Physics (NCP), Islamabad 45320 (Pakistan)
Publication Date:
OSTI Identifier:
21421271
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 17; Journal Issue: 10; Other Information: DOI: 10.1063/1.3491436; (c) 2010 American Institute of Physics; Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; DISPERSION RELATIONS; DRIFT INSTABILITY; ION ACOUSTIC WAVES; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; PLASMA; PLASMA DENSITY; SHEAR; WAVE PROPAGATION; FLUID MECHANICS; HYDRODYNAMICS; INSTABILITY; ION WAVES; MECHANICS; PLASMA INSTABILITY; PLASMA MICROINSTABILITIES; PLASMA WAVES

Citation Formats

Tariq, Sabeen, Mirza, Arshad M, and Masood, W. Electrostatic drift-wave instability in a nonuniform quantum magnetoplasma with parallel velocity shear flows. United States: N. p., 2010. Web. doi:10.1063/1.3491436.
Tariq, Sabeen, Mirza, Arshad M, & Masood, W. Electrostatic drift-wave instability in a nonuniform quantum magnetoplasma with parallel velocity shear flows. United States. https://doi.org/10.1063/1.3491436
Tariq, Sabeen, Mirza, Arshad M, and Masood, W. 2010. "Electrostatic drift-wave instability in a nonuniform quantum magnetoplasma with parallel velocity shear flows". United States. https://doi.org/10.1063/1.3491436.
@article{osti_21421271,
title = {Electrostatic drift-wave instability in a nonuniform quantum magnetoplasma with parallel velocity shear flows},
author = {Tariq, Sabeen and Mirza, Arshad M and Masood, W},
abstractNote = {The propagation of high and low frequency (in comparison with the cyclotron frequency) electrostatic drift-waves is investigated in a nonuniform, dense magnetoplasma (composed of electrons and ions), in the presence of parallel shear flow, by employing the quantum magnetohydrodynamic (QMHD) model. Using QMHD model, a new set of equations is presented in order to investigate linear properties of electrostatic drift-waves with sheared plasma flows for dense plasmas. In this regard, dispersion relations for coupled electron-thermal and drift-ion acoustic modes are derived and several interesting limiting cases are discussed. For instance, it is found that sheared ion flow parallel to the external magnetic field can drive the quantum drift-ion acoustic wave unstable, etc. The present investigation may have relevance in dense astrophysical environments where quantum effects are significant.},
doi = {10.1063/1.3491436},
url = {https://www.osti.gov/biblio/21421271}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 10,
volume = 17,
place = {United States},
year = {Fri Oct 15 00:00:00 EDT 2010},
month = {Fri Oct 15 00:00:00 EDT 2010}
}