Rotating Alfvén waves in rotating plasmas

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

Research output: Contribution to journalArticlepeer-review


Angular momentum coupling between a rotating magnetized plasma and torsional Alfvén waves carrying orbital angular momentum (OAM) is examined. It is demonstrated not only that rotation is the source of Fresnel-Faraday rotation - or orbital Faraday rotation effects - for OAM-carrying Alfvén waves, but also that angular momentum from an OAM-carrying Alfvén wave can be transferred to a rotating plasma through the inverse process. For the direct process, the transverse structure angular rotation frequency is derived by considering the dispersion relation for modes with opposite OAM content. For the inverse process, the torque exerted on the plasma is derived as a function of wave and plasma parameters.

Original languageEnglish (US)
Article number905890613
JournalJournal of Plasma Physics
Issue number6
StatePublished - Dec 28 2023

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


  • plasma dynamics
  • plasma waves


Dive into the research topics of 'Rotating Alfvén waves in rotating plasmas'. Together they form a unique fingerprint.

Cite this