Dark and grey electromagnetic electron-cyclotron envelope solitons in an electron-positron magnetoplasma

P.K. Shukla, R. Bingham, A.D.R. Phelps, L. Stenflo

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We present an investigation of the amplitude modulation of an external magnetic field-aligned right-hand circularly polarized electromagnetic electron-cyclotron move in a strongly magnetized electron-positron plasma. It is shown that the dynamics of the modulated EMEC wave packet is governed by a, cubic nonlinear Schrodinger equation. The latter reveals that a modulated wave packet can propagate W the form of either a dark or a grey envelope Won. This result could have relevance to he transport of electromagnetic move energy over long distances via envelope solitons in the magnetospheres of pulsars and magnetars.
Original languageEnglish
Pages (from-to)575-580
Number of pages5
JournalJournal of Plasma Physics
Publication statusPublished - Oct 2009


  • extragalactic radio-sources
  • nonlinear propagation
  • pulsar magnetospheres
  • pair production
  • laser-pulses
  • plasmas
  • waves
  • instability
  • modes
  • field

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