On nonlinear physics of shear Alfvén waves

Liu Chen, Fulvio Zonca

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Shear Alfvén waves (SAW) are electromagnetic oscillations prevalent in laboratory and nature magnetized plasmas. Due to their anisotropic nature, it is well known that the linear wave propagation and dispersiveness of SAW are fundamentally affected by plasma nonuniformities and magnetic field geometries, such as the existence of continuous spectrum, spectral gaps, and discrete eigenmodes in toroidal plasmas. This work discusses the pure Alfvénic state and demonstrates the crucial roles that finite ion compressibility, non-ideal kinetic effects, and geometry play in breaking it and, thereby, the nonlinear physics of SAW wave-wave interactions. © 2013 AIP Publishing LLC.
Original languageEnglish
Article number055402
Pages (from-to)-
JournalPhysics of Plasmas
Volume20
Issue number5
DOIs
Publication statusPublished - May 2013
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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