A linear collision operator for relativistic plasmas

Adam Noble, David Burton

Research output: Contribution to journalArticle

Abstract

Generalizing the work of Lenard and Bernstein, we introduce a new, fully relativistic model to describe collisional plasmas. Like the Fokker–Planck operator, this equation represents velocity diffusion and conserves particle number. However, unlike the Fokker–Planck operator, it is linear in the distribution function, and so more amenable to a fluid treatment. By taking moments, we derive a new fluid model together with a hierarchy of closure schemes, and demonstrate the damping effects of collisions on Langmuir waves in cold and warm plasmas.
Original languageEnglish
Article number145502
Number of pages9
JournalJournal of Physics A: Mathematical and Theoretical
Volume44
Issue number14
DOIs
Publication statusPublished - 8 Apr 2011

Keywords

  • relativistic plasmas
  • plasma kinetic equations
  • electron collisions
  • Vlasov equation

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