2008/10/30 by Benjamin D. G. Chandran · 43 citations
Physics and Astronomy · #Alfvén wave #Astro and Planetary Science #Cascade #Classical mechanics #Compressibility #Computational physics #Ionosphere and magnetosphere dynamics #Kinetic energy #Magnetohydrodynamic drive #Magnetohydrodynamics #Mechanics #Physics #Plasma #Quantum mechanics #Solar and Space Plasma Dynamics #Turbulence #astro-ph
paper · pdf · doi:10.1103/physrevlett.101.235004
published in Physical Review Letters 101(23), 235004 (American Physical Society) · Accepted, Physical Review Letters
arxiv created 2008/10/30 · openalex publication_date 2008/12/02 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In this Letter, weak-turbulence theory is used to investigate interactions among Alfvén waves and fast and slow magnetosonic waves in collisionless low-beta plasmas. The wave kinetic equations are derived from the equations of magnetohydrodynamics, and extra terms are then added to model collisionless damping. These equations are used to provide a quantitative description of a variety of nonlinear processes, including parallel and perpendicular energy cascade, energy transfer between wave types, "phase mixing," and the generation of backscattered Alfvén waves.