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Small-amplitude electrostatic solitary waves in a dusty plasma with variable charge resonant trapped dust particles

Published online by Cambridge University Press:  01 December 2007

LEILA AIT GOUGAM ,
MOULOUD TRIBECHE  and
FAWZIA MEKIDECHE
LEILA AIT GOUGAM
Affiliation:
Faculty of Sciences-Physics, Theoretical Physics Laboratory, University of Bab-Ezzouar, USTHB, B.P. 32, El Alia, Algiers 16111, Algeria
MOULOUD TRIBECHE
Affiliation:
Faculty of Sciences-Physics, Theoretical Physics Laboratory, University of Bab-Ezzouar, USTHB, B.P. 32, El Alia, Algiers 16111, Algeria
FAWZIA MEKIDECHE
Affiliation:
Faculty of Sciences-Physics, Theoretical Physics Laboratory, University of Bab-Ezzouar, USTHB, B.P. 32, El Alia, Algiers 16111, Algeria
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Abstract

Small-amplitude electrostatic solitary waves are investigated in unmagnetized dusty plasmas with variable charge resonant trapped dust particles. It is found that under certain conditions spatially localized structures, the height and nature of which depend sensitively on the plasma parameters, can exist. The effects of dust grain temperature, equilibrium dust charge, trapping parameter, and dust size on the properties of these solitary waves are briefly discussed. A neural network with a given architecture and learning process, and which may be useful to interpret experimental data, is outlined. Our investigation may be taken as a prerequisite for the understanding of the solitary dust waves that may occur in space as well as in laboratory plasmas.

Type
Papers
Information
Journal of Plasma Physics , Volume 73 , Issue 6 , December 2007 , pp. 901 - 910
Copyright
Copyright © Cambridge University Press 2007

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