Effects of dust size distribution in ultracold quantum dusty plasmas

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

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.

Keywords: quantum dusty plasmas dispersion relation velocity of soliton

Received: 31 March 2010
Revised: 18 May 2010
Accepted manuscript online:

PACS:	52.35.Sb	(Solitons; BGK modes)
	52.35.Vy
	52.35.Mw	(Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))

Fund: 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).

Cite this article:

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 2011 Chin. Phys. B 20 025203

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