Laboratory observation of a nonlinear interaction between shear Alfv\'en waves
Abstract
An experimental investigation of nonlinear interactions between shear Alfv\'en waves in a laboratory plasma is presented. Two Alfv\'en waves, generated by a resonant cavity, are observed to beat together, driving a low frequency nonlinear psuedo-mode at the beat frequency. The psuedo-mode then scatters the Alfv\'en waves, generating a series of sidebands. The observed interaction is very strong, with the normalized amplitude of the driven psuedo-mode comparable to the normalized magnetic field amplitude (δ B/B) of the interacting Alfv\'en waves.
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.