A statistical theory of electromagnetic waves in turbulent plasmas |
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| Authors: | I Ben-Israel T Piran Aharon Eviatar J Weinstock |
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| Institution: | (1) Dept. of Environmental Sciences, Tel Aviv University, Tel Aviv, Israel;(2) Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colo, USA;(3) Present address: The Racah Institute of Physics, The Hebrew University, Jerusalem, Israel |
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| Abstract: | A statistical theory, previously developed for electrostatic waves is extended to the case of electromagnetic waves in the presence of a constant magnetic field. The theory is nonlinear and contains the effects of mode-mode coupling. The extension is not straightforward as assumed previously by many authors and involves calculation of perturbed trajectories in both velocity and configuration space. A diffusion equation is derived for the average particle distribution function, the associated diffusion tensor is calculated and a nonlinear wave dispersion relation is found. All these results contain the usual quasilinear theory as the lowest order approximation. |
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