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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). 083102-1. ISSN 1070-664X

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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.

    Item type: Article
    ID code: 6449
    Keywords: plasma, astryphysical plasma, electromagnetic pulse, kinetic photon equation, broadband pulse, electromagnetic waves, electron-positron plasma, Plasma physics. Ionized gases, Physics, Condensed Matter Physics
    Subjects: Science > Physics > Plasma physics. Ionized gases
    Science > Physics
    Department: Faculty of Science > Physics
    Related URLs:
    Depositing user: Miss Darcy Spiller
    Date Deposited: 07 Jul 2008
    Last modified: 03 Jul 2014 21:31
    URI: http://strathprints.strath.ac.uk/id/eprint/6449

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