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Velocity-Space Diffusion in a Perpendicularly Propagating Electrostatic Wave

Charles F. F. Karney
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Abstract

The motion of ions in the fields B = B_0 zhat and E = E_0 yhat cos(k_perp y - omega t) is considered. When omega >> Omega_i and v_perp > omega/k_perp, the equations of motion may be reduced to a set of difference equations. These equations exhibit stochastic behavior when E_0 exceeds a threshold. The diffusion coefficient above the threshold is determined. Far above the threshold, ion Landau damping is recovered. Extension of the method to include parallel propagation is outlined.

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BibTeXRIS

Charles F. F. Karney. 2005-01-07. Velocity-Space Diffusion in a Perpendicularly Propagating Electrostatic Wave. https://arxiv.org/abs/physics/0501035

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