Dust acoustic dressed soliton with dust charge fluctuations

Asgari, H. and Muniandy, S.V. and Wong, C.S. (2010) Dust acoustic dressed soliton with dust charge fluctuations. Physics of Plasmas, 17 (6).

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Abstract

Modeling of dust acoustic solitons observed in dusty plasma experiment [Bandyopadhyay et al., Phys. Rev. Lett. 101, 065006 (2008)] using the Korteweg-de Vries (KdV) equation showed significant discrepancies in the regime of large amplitudes (or high soliton speed). In this paper, higher order perturbation corrections to the standard KdV soliton are proposed and the resulting dressed soliton is shown to describe the experimental data better, in particular, at high soliton speed. The effects of dust charge fluctuations on the dust acoustic dressed soliton in a dusty plasma system are also investigated. The KdV equation and a linear inhomogeneous equation, governing the evolution of first and second order potentials, respectively, are derived for the system by using reductive perturbation technique. Renormalization procedure is used to obtain nonsecular solutions of these coupled equations. The characteristics of dust acoustic dressed solitons with and without dust charge fluctuations are discussed. (C) 2010 American Institute of Physics. [doi : 10.1063/1.3439681]

Item Type: Article
Subjects: Q Science > Q Science (General)
Depositing User: MR Faizal II H
Date Deposited: 06 Oct 2015 07:02
Last Modified: 06 Oct 2015 07:02
URI: http://eprints.um.edu.my/id/eprint/14177

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