Twisted electrostatic ion-cyclotron waves in dusty plasmas

被引：19
作者：
Shukla, P. K. [1 ,2 ,3 ,4 ,5 ,6 ]
机构：
[1] Ruhr Univ Bochum, Int Ctr Adv Studies Phys Sci, D-44780 Bochum, Germany
[2] Ruhr Univ Bochum, Inst Theoret Phys, Fac Phys & Astron, D-44780 Bochum, Germany
[3] Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA
[4] Univ Calif San Diego, Energy Res Ctr, La Jolla, CA 92093 USA
[5] Univ Strathclyde, Dept Phys, SUPA, Glasgow G1 1XQ, Lanark, Scotland
[6] Univ KwaZulu Natal, Sch Chem & Phys, ZA-4000 Durban, South Africa
来源：
PHYSICAL REVIEW E | 2013年 / 87卷 / 01期
关键词：
ACOUSTIC-WAVES; MODES; INSTABILITIES;
D O I：
10.1103/PhysRevE.87.015101
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We show the existence of a twisted electrostatic ion-cyclotron (ESIC) wave carrying orbital angular momentum (OAM) in a magnetized dusty plasma. For our purposes, we derive a 3D wave equation for the coupled ESIC and dust ion-acoustic (DIA) waves from the hydrodynamic equations that are composed of the continuity and momentum equations, together with Poisson's equation. The 3D wave equation reveals the formation of a braided or twisted ESIC wave structure carrying OAM. The braided or twisted ESIC wave structure can trap and transport plasma particles in magnetoplasmas, such as those in Saturn's F-ring and in the forthcoming magnetized dusty plasma experiments. DOI: 10.1103/PhysRevE.87.015101
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页数：4
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