Theory of cavitons in complex plasmas
Shukla, Padma and Eliasson, Bengt and Sandberg, Ingmar (2003) Theory of cavitons in complex plasmas. Physical Review Letters, 91 (7). 075005. ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.91.075005)
Full text not available in this repository.Request a copyAbstract
Nonlinear coupling between Langmuir waves with finite amplitude dispersive dust acoustic perturbations is considered. It is shown that the interaction is governed by a pair of coupled nonlinear differential equations. Numerical results reveal the formation of Langmuir envelope solitons composed of the dust density depression created by the ponderomotive force of bell-shaped Langmuir wave envelops. The associated ambipolar potential is positive. The present nonlinear theory should be able to account for the trapping of large amplitude Langmuir waves in finite amplitude dust density holes. This scenario may appear in Saturn’s dense rings, and the Cassini spacecraft should be able to observe fully nonlinear cavitons, as presented herein. Furthermore, we propose that new electron-beam plasma experiments should be conducted to verify our theoretical prediction.
-
-
Item type: Article ID code: 45977 Dates: DateEvent15 August 2003PublishedSubjects: Science > Physics Department: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 18 Nov 2013 16:03 Last modified: 08 Apr 2024 20:56 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/45977