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)
Preview |
Text.
Filename: strathprints006449.pdf
Accepted Author Manuscript Download (1MB)| Preview |
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 Dates: DateEvent8 August 2006PublishedSubjects: Science > Physics > Plasma physics. Ionized gases
Science > PhysicsDepartment: Faculty of Science > Physics Depositing user: Miss Darcy Spiller Date deposited: 07 Jul 2008 Last modified: 14 Aug 2024 00:54 URI: https://strathprints.strath.ac.uk/id/eprint/6449