JETP Letters

, Volume 99, Issue 1, pp 9–15 | Cite as

Subcritical mirror structures in an anisotropic plasma

  • E. A. Kuznetsov
  • T. Passot
  • V. P. Ruban
  • P. L. Sulem
Article

Abstract

Based on Grad-Shafranov-like equations, a gyrotropic plasma where the pressures in the static regime are only functions of the amplitude of the local magnetic field is shown to be amenable to a variational principle with a free energy density given by the parallel tension. This approach is used to demonstrate that small-amplitude static holes constructed slightly below the mirror instability threshold identify with lump solitons of KPII (Kadomtsev-Petviashvili) equation and turn out to be unstable. It is also shown that regularizing effects such as finite Larmor radius corrections cannot be ignored in the description of large-amplitude mirror structures.

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Copyright information

© Pleiades Publishing, Inc. 2014

Authors and Affiliations

  • E. A. Kuznetsov
    • 1
    • 2
    • 3
  • T. Passot
    • 4
  • V. P. Ruban
    • 3
  • P. L. Sulem
    • 4
  1. 1.Lebedev Physical InstituteRussian Academy of SciencesMoscowRussia
  2. 2.Space Research InstituteRussian Academy of SciencesMoscowRussia
  3. 3.Landau Institute for Theoretical PhysicsRussian Academy of SciencesMoscowRussia
  4. 4.Université de Nice-Sophia AntipolisCNRS, Observatoire de la Cóte d’AzurNice Cedex 4France

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