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Nonlinear coupling of two three-wave systems in plasma

Published online by Cambridge University Press:  13 March 2009

Shukla Basu (De)  and
R. K. Roychowdhury
Shukla Basu (De)
Affiliation:
Electronics Unit, Indian Statistical Institute, Calcutta – 700 035
R. K. Roychowdhury
Affiliation:
Electronics Unit, Indian Statistical Institute, Calcutta – 700 035
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Abstract

The nonlinear interaction of two three-wave systems, including the possibility of negative energy waves in the presence of linear damping or growth and frequency mismatch, is investigated in a plasma, where one system of two transverse and one longitudinal wave interacts with a system of three longitudinal waves, and one of the longitudinal waves introduces coupling between the two subsystems. The solutions are analysed under various initial conditions and it is shown that, if one triplet be explosively unstable by itself, the presence of the second triplet can stabilize the solutions, depending on the relative strength of the coupling factor.

Type
Research Article
Information
Journal of Plasma Physics , Volume 30 , Issue 3 , December 1983 , pp. 345 - 357
Copyright
Copyright © Cambridge University Press 1983

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