Journal
PHYSICS OF PLASMAS
Volume 21, Issue 12, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.4903208
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The charge variation induced nonlinear dust-acoustic wave damping in a charge varying dusty plasma with nonextensive ions is considered. It is shown that the collisionless damping due to dust charge fluctuation causes the nonlinear dust acoustic wave propagation to be described by a damped Korteweg-de Vries (dK-dV) equation the coefficients of which depend sensitively on the nonextensive parameter q. The damping term, solely due to the dust charge variation, is affected by the ion nonextensivity. For the sake of completeness, the possible effects of nonextensivity and collisionless damping on weakly nonlinear wave packets described by the dK-dV equation are succinctly outlined by deriving a nonlinear Schrodinger-like equation with a complex nonlinear coefficient. (C) 2014 AIP Publishing LLC.
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