Collisionless damping of dust-acoustic waves in a charge varying dusty plasma with nonextensive ions

2014/12/01 by Rabia Amour, Mouloud Tribeche
Earth and Planetary Sciences · Physics and Astronomy · #Dust and Plasma Wave Phenomena #Earthquake Detection and Analysis #Ionosphere and magnetosphere dynamics

paper · doi:10.1063/1.4903208

crossref issued 2014/12/01 · crossref published 2014/12/01 · crossref published-print 2014/12/01 · openalex publication_date 2014/12/01 · crossref created 2014/12/22 · crossref deposited 2023/04/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/22 · crossref indexed 2026/07/30

Abstract

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 Schrödinger-like equation with a complex nonlinear coefficient.

Citations

• Envelope excitations in electronegative plasmas with electrons featuring the Tsallis distribution
• Cosmic Dusty Plasma

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