Perpendicular propagating electromagnetic envelope solitons in electron-positron-ion plasma

Journal Article · Sat May 15 04:00:00 EDT 2010 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3414348· OSTI ID:21371110

Jehan, Nusrat ^[1]; Salahuddin, M ^[2]; Mirza, Arshad M ^[1]

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1. Department of Physics, Theoretical Plasma Physics Group, Quaid-i-Azam University, Islamabad 45320 (Pakistan)
2. Pakistan Atomic Energy Commission, P.O. Box 1114, Islamabad 44000 (Pakistan)

The nonlinear amplitude modulation of electromagnetic waves propagating perpendicular to the direction of ambient magnetic field in a uniform collisionless magnetized electron-positron-ion plasma is studied. The Krylov-Bogoliubov-Mitropolsky perturbation method is employed to derive nonlinear Schroedinger equation, which describes the amplitude dynamics of perturbed magnetic field. The modulation instability criterion reveals that the low frequency mode is always stable, whereas the high frequency mode becomes modulationally unstable for certain ranges of wave number and positron-to-electron density ratio. Furthermore, the positron-to-electron density ratio as well as the strength of ambient magnetic field is found to have significant effect on the solitary wave solutions of the nonlinear Schroedinger equation, namely, dark and bright envelope solitons.

• OSTI ID: 21371110
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 17; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
CHARGED PARTICLES
COLLISIONLESS PLASMA
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
ELECTRONS
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
INSTABILITY
IONS
LEPTONS
MAGNETIC FIELDS
MATTER
NONLINEAR PROBLEMS
PARTIAL DIFFERENTIAL EQUATIONS
PERTURBATION THEORY
PLASMA
PLASMA INSTABILITY
POSITRONS
QUASI PARTICLES
RADIATIONS
SCHROEDINGER EQUATION
SOLITONS
WAVE EQUATIONS
WAVE PROPAGATION