Decay and modulational instabilities of electron plasma waves in unmagnetized dusty plasmas

Details Decay and modulational instabilities of electron plasma waves in unmagnetized dusty plasmas Decay and modulational instabilities of electron plasma waves in unmagnetized dusty plasmas

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993p%26ss...41..693s&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 41, no. 9, p. 693-695

Physics

5

Dust, Electron Beams, Particle Interactions, Perturbation Theory, Plasma Decay, Plasma Waves, Grain Size, Low Frequencies, Nonlinearity, Particulates

Scientific paper

Nonlinear interaction between a large-amplitude electron plasma wave and low-frequency perturbations in dusty plasmas is considered. A nonlinear dispersion relation appropriate for three-wave decay interaction as well as modulational and filamentation instabilities is obtained. Analytical expressions for the growth rates and thresholds are presented. Also derived are the dynamical equations describing the long-term behavior of modulationally unstable electron plasma waves in plasmas with fixed charged dust particulates.

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