Collective modes in strongly correlated Yukawa liquids: Waves in dusty plasmas

被引：149

作者：

Kalman, G ^{[1
]}

Rosenberg, M

DeWitt, HE

机构：

[1] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA

[2] Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA

[3] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.84.6030

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We determine the collective mode structure of a strongly correlated Yukawa fluid, with the purpose of analyzing wave propagation in a strongly coupled dusty plasma. We identify a longitudinal plasmon and a transverse shear mode. The dispersion is characterized by a low-k acoustic behavior, a frequency maximum well below the plasma frequency, and a high-k merging of the two modes around the Einstein frequency of localized oscillations. The damping effect of collisions between neutrals and dust grains is estimated.

引用

页码：6030 / 6033

页数：4

共 26 条

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