Effects of dust size distribution in ultracold quantum dusty plasmas

doi:10.1088/1674-1056/20/2/025203

中国物理B ›› 2011, Vol. 20 ›› Issue (2): 25203-025203.doi: 10.1088/1674-1056/20/2/025203

Effects of dust size distribution in ultracold quantum dusty plasmas

祁学宏¹, 段文山¹, 王善进², 陈建敏³

(1)College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China; (2)School of Electronic Engineering, Dongguan University of Technology, Dongguan 523106, China; (3)State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China

收稿日期:2010-03-31 修回日期:2010-05-18 出版日期:2011-02-15 发布日期:2011-02-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 10875098) and the Natural Science Foundation of Northwest Normal University, China (Grant Nos. NWNU-KJCXGC-03-48 and NWNU-KJCXGC-03-17).

Effects of dust size distribution in ultracold quantum dusty plasmas

Qi Xue-Hong(祁学宏)^a),Duan Wen-Shan(段文山)^a)^†, Chen Jian-Min(陈建敏)^b),and Wang Shan-Jin(王善进)^c)

^a College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China; ^b State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; ^c School of Electronic Engineering, Dongguan University of Technology, Dongguan 523106, China

Received:2010-03-31 Revised:2010-05-18 Online:2011-02-15 Published:2011-02-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 10875098) and the Natural Science Foundation of Northwest Normal University, China (Grant Nos. NWNU-KJCXGC-03-48 and NWNU-KJCXGC-03-17).

摘要/Abstract

摘要： The effect of dust size distribution in ultracold quantum dusty plasmas are investigated in this paper. How the dispersion relation and the propagation velocity for the quantum dusty plasma vary with the system parameters and the different dust distribution are studied. It is found that as the Fermi temperature of the dust grains increases the frequency of the wave increases for large wave number dust acoustic wave. The quantum parameter of H_d also increases the frequency of the large wave number dust acoustic wave. It is also found that the frequency ω₀ and the propagation velocity v₀ of quantum dust acoustic waves all increase as the total number density increases. They are greater for unusual dusty plasmas than those of the usual dusty plasma.

关键词: quantum dusty plasmas, dispersion relation, velocity of soliton

Abstract: The effect of dust size distribution in ultracold quantum dusty plasmas are investigated in this paper. How the dispersion relation and the propagation velocity for the quantum dusty plasma vary with the system parameters and the different dust distribution are studied. It is found that as the Fermi temperature of the dust grains increases the frequency of the wave increases for large wave number dust acoustic wave. The quantum parameter of H_d also increases the frequency of the large wave number dust acoustic wave. It is also found that the frequency $\omega_0$ and the propagation velocity $v_0$ of quantum dust acoustic waves all increase as the total number density increases. They are greater for unusual dusty plasmas than those of the usual dusty plasma.

Key words: quantum dusty plasmas, dispersion relation, velocity of soliton

中图分类号: (Solitons; BGK modes)

52.35.Sb

52.35.Mw (Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))

祁学宏, 段文山, 陈建敏, 王善进. Effects of dust size distribution in ultracold quantum dusty plasmas[J]. 中国物理B, 2011, 20(2): 25203-025203.

Qi Xue-Hong(祁学宏), Duan Wen-Shan(段文山), Chen Jian-Min(陈建敏), and Wang Shan-Jin(王善进) . Effects of dust size distribution in ultracold quantum dusty plasmas[J]. Chin. Phys. B, 2011, 20(2): 25203-025203.

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Effects of dust size distribution in ultracold quantum dusty plasmas

Effects of dust size distribution in ultracold quantum dusty plasmas

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