Accelerating self-modulated nonlinear waves in weakly and strongly magnetized relativistic plasmas

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Abstract

It is known that a nonlinear Schrödinger equation describes the self-modulation of a large amplitude circularly polarized wave in relativistic electron-positron plasmas in the weakly and strongly magnetized limits. Here, we show that such an equation can be written as a modified second Painlevé equation, producing accelerated propagating wave solutions for those nonlinear plasmas. This solution even allows the plasma wave to reverse its direction of propagation. The acceleration parameter depends on the plasma magnetization. This accelerating solution is different to the usual soliton solution propagating at constant speed.

Original languageEnglish
Article number000229
JournalJournal of Plasma Physics
Volume90
Issue number1
DOIs
StatePublished - 27 Feb 2024
Externally publishedYes

Keywords

  • plasma nonlinear phenomena
  • plasma properties
  • plasma waves

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