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Gyrokinetic theory and simulation of mirror instability

Phys. Plasmas 14, 042108 (2007); doi:10.1063/1.2721074

Published 27 April 2007

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Hongpeng Qu, Zhihong Lin, and Liu Chen
Department of Physics and Astronomy, University of California, Irvine, California 92697
The finite Larmor radius (FLR) effects play an important role in determining the threshold and the growth rate of the mirror instability. In this study, a general dispersion relation of the mirror mode with FLR effects is derived by using gyrokinetic theory. It shows that both the FLR effects and the coupling to the slow sound wave are stabilizing. A gyrokinetic particle simulation code has been developed for simulation of compressible magnetic turbulence driven by the mirror instability. Results of the linear simulation of mirror mode agree well with the analytic dispersion relation. ©2007 American Institute of Physics
History: Received 3 November 2006; accepted 8 March 2007; published 27 April 2007
Permalink: http://link.aip.org/link/?PHPAEN/14/042108/1
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KEYWORDS and PACS

Keywords
PACS
  • 52.35.Py
    Plasma macroinstabilities (hydromagnetic) e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor instabilities, etc
  • 52.65.Tt
    Gyrofluid and gyrokinetic plasma simulations
  • 52.25.Dg
    Plasma kinetic equations
  • 52.35.Dm
    Plasma sound waves
  • 52.35.Ra
    Plasma turbulence
  • 52.30.Gz
    Gyrokinetics in plasmas
  • YEAR: 2007

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PUBLICATION DATA

ISSN:
1070-664X (print)   1089-7674 (online)
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