Effects of dust size distribution in ultracold quantum dusty plasmas

被引：7

作者：

Qi Xue-Hong ^{[1
]}

Duan Wen-Shan ^{[1
]}

Chen Jian-Min ^{[2
]}

Wang Shan-Jin ^{[3
]}

机构：

[1] NW Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China

[2] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

[3] Dongguan Univ Technol, Sch Elect Engn, Dongguan 523106, Peoples R China

来源：

CHINESE PHYSICS B | 2011年 / 20卷 / 02期

基金：

中国国家自然科学基金;

关键词：

quantum dusty plasmas; dispersion relation; velocity of soliton; ACOUSTIC SOLITARY WAVES; KINETIC-THEORY; MODE;

D O I：

10.1088/1674-1056/20/2/025203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

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 omega(0) and the propagation velocity v(0) of quantum dust acoustic waves all increaseas the total number density increases. They are greater for unusual dusty plasmas than those of the usual dusty plasma

引用

页数：6

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