Envelope solitons associated with electromagnetic waves in a magnetized pair plasma

Cattaert, Tom; Kourakis, I.; Shukla, P. K.

doi:10.1063/1.1830014

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Envelope solitons associated with electromagnetic waves in a magnetized pair plasma

Cattaert, Tom; Kourakis, I.; Shukla, P. K.

2005 • In Physics of Plasmas, 12 (1), p. 6

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https://hdl.handle.net/2268/33746

DOI
10.1063/1.1830014

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Keywords :

ELECTRON-POSITRON PLASMAS; PULSAR MAGNETOSPHERES; RADIO-EMISSION; MODES; INSTABILITY

Abstract :

[en] The amplitude modulation of magnetic field-aligned circularly polarized electromagnetic (CPEM) waves in a magnetized pair plasma is reexamined. The nonlinear frequency shifts include the effects of the radiation pressure driven density and compressional magnetic field perturbations as well as relativistic particle mass variations. The dynamics of the modulated CPEM wave packets is governed by a nonlinear Schrodinger equation, which has attractive and repulsive interaction potentials for fast and slow CPEM waves. The modulational stability of a constant amplitude CPEM wave is studied by deriving a nonlinear dispersion from the cubic Schrodinger equation. The fast (slow) CPEM mode is modulationally unstable (stable). Possible stationary amplitude solutions of the modulated fast (slow) CPEM mode can be represented in the form of bright and dark/gray envelope electromagnetic soliton structures. Localized envelope excitations can be associated with the microstructures in pulsar magnetospheres and in laboratory pair magnetoplasmas. (C) 2005 American Institute of Physics.

Disciplines :

Physics

Author, co-author :

Cattaert, Tom ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Bioinformatique

Kourakis, I.

Shukla, P. K.

Language :

English

Title :

Envelope solitons associated with electromagnetic waves in a magnetized pair plasma

Publication date :

2005

Journal title :

Physics of Plasmas

ISSN :

1070-664X

eISSN :

1089-7674

Publisher :

American Institute of Physics

Volume :

Issue :

Pages :

Peer reviewed :

Peer Reviewed verified by ORBi

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since 24 December 2009

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