Abstract

The dust-induced instability involving charge fluctuations is studied in rotating dusty plasma. Due to dust charging dynamics, the dust-induced instability mode which was first put forward by Mikhailovskii et al. [A.B. Mikhailovskii, S.V. Vladimirov, J.G. Lominadze, V.S. Tsypin, A.P. Churikov, N.N. Erokhin, R.M.O. Galvao, Phys. Plasmas 15, 014504 (2008)] will be replaced by dust-charging-rotational instability (DCRI) mode. Comparing to the dust-induced instability, the new instability mode also exists in an increasing rotation frequency profile, but always with a greater growth rate. The analysis indicates that the rotational instability mode induced by dust charge is always unstable. The present results may be used to investigate the rotating dusty plasma experiments and observations.

Graphical abstract

中文翻译：

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旋转尘土中尘埃电荷波动引起的尘埃不稳定性

摘要

在旋转的粉尘等离子体中研究了粉尘引起的涉及电荷波动的不稳定性。由于粉尘带电的动力学，Mikhailovskii等人首先提出了粉尘引起的不稳定性模式。[AB Mikhailovskii，SV Vladimirov，JG Lominadze，VS Tsypin，AP Churikov，NN Erokhin，RMO Galvao，Phys。等离子体15，014504（2008）]将通过灰尘充电转动不稳定性（DCRI）模式来代替。与粉尘引起的不稳定性相比，新的不稳定性模式还以增加的旋转频率分布存在，但始终具有更高的增长率。分析表明，由粉尘电荷引起的旋转不稳定性模式总是不稳定的。目前的结果可用于调查旋转尘土等离子体实验和观察。

图形概要