Nonlinear coupling between Langmuir and dust-acoustic waves in dusty plasmas with dust charge perturbations

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Published under licence by IOP Publishing Ltd
, , Citation R Guerra and P K Shukla 1996 Phys. Scr. 1996 272 DOI 10.1088/0031-8949/1996/T63/049

1402-4896/1996/T63/272

Abstract

The nonlinear coupling of high-frequency Langmuir waves with dusty plasma slow motions is considered, taking into account the dust charge perturbation. It is found that the latter modifies the spectra of both the high-and low-frequency wave motions as well as the coupling coefficients. Nonlinear dispersion relations for various types of parametric interactions are obtained and compared with previous investigations.

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10.1088/0031-8949/1996/T63/049