title: Twisted electrostatic ion-cyclotron waves in dusty plasmas.
abstract: 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.
authors: International Centre for Advanced Studies in Physical Sciences & Institute for Theoretical Physics, Faculty of Physics and Astronomy, Ruhr University Bochum, D-44780 Bochum, Germany. profshukla@yahoo.de
authors: P K
authors: PK
authors: Shukla
mesh_terms: D003198:Computer Simulation; D017357:Cyclotrons; D004391:Dust; D007477:Ions / Q000737:chemistry*; D008956:Models, Chemical; D008958:Models, Molecular; D015233:Models, Statistical; D058626:Plasma Gases / Q000737:chemistry*; D012212:Rheology / Q000379:methods*; D055672:Static Electricity
chemical_list: D004391:Dust; D007477:Ions; D058626:Plasma Gases