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Formation of dipolar vortices and vortex streets due to nonlinearly interacting ion-temperature-gradient-driven modes in dense magnetoplasmas

Published online by Cambridge University Press:  12 March 2010

NAZIA BATOOL  and
ARSHAD M. MIRZA
NAZIA BATOOL
Affiliation:
National Centre for Physics (NCP), Islamabad, Pakistan
ARSHAD M. MIRZA
Affiliation:
Theoretical Plasma Physics Group, Physics Department, Quaid-i-Azam University, Islamabad 45320, Pakistan ([email protected])
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Abstract

Nonlinear equations which govern the dynamics of low-frequency (ω ⪡ ωci, where ω is the perturbation frequency of the wave and ωci is the ion gyro-frequency), ion-temperature-gradient-driven modes in the presence of equilibrium density, temperature and magnetic field gradients are derived. New set of nonlinear equations are derived. In the nonlinear case, new types of solutions in the form of dipolar vortices and vortex streets are found to exist in dense quantum plasma. These structures are found to be formed on very short spatial scales.

Type
Papers
Information
Journal of Plasma Physics , Volume 77 , Issue 2 , April 2011 , pp. 245 - 255
Copyright
Copyright © Cambridge University Press 2010

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