Nonlinear dust-acoustic solitary waves in strongly coupled dusty plasmas

Dust-acoustic waves are investigated in a three-component plasma consisting of strongly coupled dust particles and Maxwellian electrons and ions. A fluid model approach is used, with the effects of strong coupling being accounted for by an effective electrostatic “pressure” which is a function of th...

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Hauptverfasser:	Cousens, Steven E, Sultana, Sharmin, Kourakis, Ioannis, Yaroshenko, Victoria V, Verheest, Frank, Hellberg, Manfred A
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Schlagworte:	CRYSTAL MICROGRAVITY CONDITIONS PARTICLES Physics and Astronomy
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creator	Cousens, Steven E Sultana, Sharmin Kourakis, Ioannis Yaroshenko, Victoria V Verheest, Frank Hellberg, Manfred A
description	Dust-acoustic waves are investigated in a three-component plasma consisting of strongly coupled dust particles and Maxwellian electrons and ions. A fluid model approach is used, with the effects of strong coupling being accounted for by an effective electrostatic “pressure” which is a function of the dust number density and the electrostatic potential. Both linear and weakly nonlinear cases are considered by derivation and analysis of the linear dispersion relation and the Korteweg-de Vries equation, respectively. In contrast to previous studies using this model, this paper presents the results arising from an expansion of the dynamical form of the electrostatic pressure, accounting for the variations in its value in the vicinity of the wave.
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source	Ghent University Academic Bibliography; American Physical Society Journals
subjects	CRYSTAL MICROGRAVITY CONDITIONS PARTICLES Physics and Astronomy
title	Nonlinear dust-acoustic solitary waves in strongly coupled dusty plasmas
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