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Longitudinal dust acoustic solitary waves in a strongly coupled complex (dusty) plasma

Published online by Cambridge University Press:  02 February 2015

Nikhil Chakrabarti*
Affiliation:
Saha Institute of Nuclear Physics, 1/AF Bidhannagar Calcutta - 700 064, India
Samiran Ghosh
Affiliation:
Saha Institute of Nuclear Physics, 1/AF Bidhannagar Calcutta - 700 064, India
*
Email address for correspondence: nikhil.chakrabarti@saha.ac.in

Abstract

The dynamics of the weakly nonlinear and weakly dispersive low frequency longitudinal dust acoustic waves (LDAWs) in a strongly coupled complex (dusty) plasma are investigated using generalized hydrodynamic (GH) model. In presence of strong correlation, the nonlinear wave is shown to be governed by a Korteweg–de Vries (KdV) equation with a nonlocal nonlinear forcing and a linear damping terms. This novel equation is solved numerically to show the competition between nonlinear forcing and dissipative damping in the formation of the localized structures.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2015 

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