Vibrational Modes and Instabilities of a Dust Particle Pair in a Complex Plasma

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Qiao, Ke
Matthews, Lorin Swint.
Hyde, Truell Wayne.
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IEEE Transactions on Plasma Science
Abstract

Vibrational modes and instabilities of a dust-particle pair in a terrestrial aboratory complex plasma are investigated by employing an analytical method whereby the plasma wakefield induced by an external electric field is modeled using an image-charge method. It is found that for both horizontally and vertically aligned dust-particle pairs in equilibrium, four normal modes exist. Variations of the confinement parameters cause a single type of instability in the horizontal pair and two types of nstabilities in the vertical pair.

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IEEE Transactions on Plasma Science, 38(4), 826-832, 2010
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