PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Linear and nonlinear excitations in complex plasmas with nonadiabatic dust charge fluctuation and dust size distribution |
Zhang Li-Ping(张丽萍)a)†, Xue Ju-Kui(薛具奎) b), and Li Yan-Long(李延龙)a) |
a School of Sciences, Lanzhou University of Technology, Lanzhou 730050, China; b College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China |
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Abstract Both linear and nonlinear excitation in dusty plasmas have been investigated including the nonadiabatic dust charge fluctuation and Gaussian size distribution dust particles. A linear dispersion relation and a Korteweg-de Vries-Burgers equation governing the dust acoustic shock waves are obtained. The relevance of the instability of wave and the wave evolution to the dust size distribution and nonadiabatic dust charge fluctuation is illustrated both analytically and numerically. The numerical results show that the Gaussian size distribution of dust particles and the nonadiabatic dust charge fluctuation have strong common influence on the propagation of both linear and nonlinear excitations.
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Received: 01 April 2011
Revised: 13 May 2011
Accepted manuscript online:
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PACS:
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52.35.Mw
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(Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10975114) and the Prominent Youth Foundation
of Lanzhou University of Technology, China (Grant No. 0910ZXC082). |
Cite this article:
Zhang Li-Ping(张丽萍), Xue Ju-Kui(薛具奎), and Li Yan-Long(李延龙) Linear and nonlinear excitations in complex plasmas with nonadiabatic dust charge fluctuation and dust size distribution 2011 Chin. Phys. B 20 115201
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