Nonlinear propagation of broadband intense electromagnetic waves in an electron-positron plasma

Marklund, M. and Eliasson, B. and Shukla, P.K. (2006) Nonlinear propagation of broadband intense electromagnetic waves in an electron-positron plasma. Physics of Plasmas, 13 (8). ISSN 1070-664X (https://doi.org/10.1063/1.2242941)

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Abstract

A kinetic equation describing the nonlinear evolution of intense electromagnetic pulses in electron-positron (e-p) plasmas is presented. The modulational instability is analyzed for a relativistically intense partially coherent pulse, and it is found that the modulational instability is inhibited by the spectral pulse broadening. A numerical study for the one-dimensional kinetic photon equation is presented. Computer simulations reveal a Fermi-Pasta-Ulam-like recurrence phenomena for localized broadband pulses. The results should be of importance in understanding the nonlinear propagation of broadband intense electromagnetic pulses in e-p plasmas in laser-plasma systems as well as in astrophysical plasma settings.

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• Item metadata

  Item type:	Article
  ID code:	6449
  Dates:	Date Event 8 August 2006 Published
  Subjects:	Science > Physics > Plasma physics. Ionized gases Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Miss Darcy Spiller
  Date deposited:	07 Jul 2008
  Last modified:	12 Dec 2024 02:12
  URI:	https://strathprints.strath.ac.uk/id/eprint/6449