Nonlinearly coupled whistlers and dust-acoustic perturbations in dusty plasmas

Journal Article · Thu Dec 15 00:00:00 EST 2005 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2142248· OSTI ID:20782416

Shukla, P K; Mond, M; Kourakis, I; Eliasson, B ^[1]

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1. Institut fuer Theoretische Physik IV, Fakultaet fuer Physik und Astronomie, Ruhr-Universitaet Bochum, D-44780 Bochum (Germany)

The nonlinear interaction between magnetic-field-aligned coherent whistlers and dust-acoustic perturbations (DAPs) in a magnetized dusty plasma is considered. The interaction is governed by a pair of equations consisting of a nonlinear Schroedinger equation for the modulated whistler wave packet and an equation for the nonresonant DAPs in the presence of the ponderomotive force generated by the whistlers. The coupled equations are employed to investigate the occurrence of modulational instability, in addition to the formation of whistler envelope solitons. This investigation is relevant to amplitude modulated electron whistlers in magnetized space dusty plasmas.

• OSTI ID: 20782416
• Journal Information: Physics of Plasmas, Vol. 12, Issue 12; Other Information: DOI: 10.1063/1.2142248; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLITUDES
DISTURBANCES
DUSTS
ELECTRONS
ION ACOUSTIC WAVES
MAGNETIC FIELDS
NONLINEAR PROBLEMS
PLASMA
PLASMA INSTABILITY
PONDEROMOTIVE FORCE
SCHROEDINGER EQUATION
SOLITONS
WAVE PACKETS
WHISTLERS