Quasilinear theory of Brillouin resonances in rotating magnetized plasmas

J. M. Rax, R. Gueroult, N. J. Fisch

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Both spin and orbital angular momentum can be exchanged between a rotating wave and a rotating magnetized plasma. Through resonances the spin and orbital angular momentum of the wave can be coupled to both the cyclotron rotation and the drift rotation of the particles. It is, however, shown that the Landau and cyclotron resonance conditions which classically describe resonant energy-momentum exchange between waves and particles are no longer valid in a rotating magnetized plasma column. In this case a new resonance condition which involves a resonant matching between the wave frequency, the cyclotron frequency modified by inertial effects and the harmonics of the guiding centre rotation is identified. A new quasilinear equation describing orbital and spin angular momentum exchanges through these new Brillouin resonances is then derived, and used to expose the wave-driven radial current responsible for angular momentum absorption.

Original languageEnglish (US)
Article number905890408
JournalJournal of Plasma Physics
Volume89
Issue number4
DOIs
StatePublished - Jul 25 2023

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Keywords

  • plasma dynamics
  • plasma nonlinear phenomena
  • plasma waves

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