Supernonlinear Waves in Plasma
- 17 October 2012
- journal article
- Published by Pleiades Publishing Ltd in Plasma Physics Reports
- Vol. 38 (10) , 833-844
Abstract
A new class of nonlinear waves in plasma—supernonlinear waves (SNWs) characterized by the nontrivial topology of their phase portraits—has been revealed. The topological classification of such waves is given, and suitable notation for them is proposed. It is demonstrated using several examples that SNWs can exist in the form of plasma waves of different physical nature, e.g., electrostatic (ion-acoustic) and MHD (Alfvén) waves. It is shown that a necessary condition for the existence of SNWs is the presence of at least three different charged plasma components (electrons, positrons, ions, dust grains, etc.). As the number of plasma components increases, the topology of the SNW phase portrait becomes more complicated. Typical indications of SNWs are given, which make is possible to easily reveal such waves experimentally.Keywords
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