The effect of dust charge inhomogeneity on low-frequency modes in a strongly coupled plasma
作者:
T. Farid,
A. A. Mamun,
P. K. Shukla,
期刊:
AIP Conference Proceedings
(AIP Available online 1900)
卷期:
Volume 537,
issue 1
页码: 41-47
ISSN:0094-243X
年代: 1900
DOI:10.1063/1.1324921
出版商: AIP
数据来源: AIP
摘要:
An analysis of low-frequency modes accounting for dust grain charge fluctuation and equilibrium grain charge inhomogeneity in a strongly coupled dusty plasma is presented. The existence of an extremely low frequency mode, which is due to the inhomogeneity in the equilibrium dust grain charge, is reported. Besides, the equilibrium dust grain charge inhomogeneity makes the dust-acoustic mode unstable. The strong correlations in the dust fluid significantly drive a new mode as well as the existing dust-acoustic mode. The applications of these results to recent experimental and to some space and astrophysical situations are discussed. ©2000 American Institute of Physics.
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