Linear and nonlinear excitations in complex plasmas with nonadiabatic dust charge fluctuation and dust size distribution

doi:10.1088/1674-1056/20/11/115201

中国物理B ›› 2011, Vol. 20 ›› Issue (11): 115201-115201.doi: 10.1088/1674-1056/20/11/115201

Linear and nonlinear excitations in complex plasmas with nonadiabatic dust charge fluctuation and dust size distribution

薛具奎¹, 张丽萍², 李延龙²

(1)College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China; (2)School of Sciences, Lanzhou University of Technology, Lanzhou 730050, China

收稿日期:2011-04-01 修回日期:2011-05-13 出版日期:2011-11-15 发布日期:2011-11-15
基金资助:
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).

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

Received:2011-04-01 Revised:2011-05-13 Online:2011-11-15 Published:2011-11-15
Supported by:
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).

摘要/Abstract

摘要： 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.

关键词: dusty plasmas, nonadiabatic dust charge fluctuation, dust size distribution

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.

Key words: dusty plasmas, nonadiabatic dust charge fluctuation, dust size distribution

中图分类号: (Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))

52.35.Mw

张丽萍, 薛具奎, 李延龙. Linear and nonlinear excitations in complex plasmas with nonadiabatic dust charge fluctuation and dust size distribution[J]. 中国物理B, 2011, 20(11): 115201-115201.

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[J]. Chin. Phys. B, 2011, 20(11): 115201-115201.

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Linear and nonlinear excitations in complex plasmas with nonadiabatic dust charge fluctuation and dust size distribution

Linear and nonlinear excitations in complex plasmas with nonadiabatic dust charge fluctuation and dust size distribution

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