Velocity-Space Diffusion in a Perpendicularly Propagating Electrostatic Wave
Abstract
Description
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.
Plain TeX, 11 pages, 5 figures. In "Intrinsic Stochasticity in Plasmas", edited by G. Laval and D. Gresillon (Editions de Physique Courtaboeuf, Orsay, 1979), pp. 159-168. Proc. Workshop on Intrinsic Stochasticity in Plasmas, Cargese, Corsica, June 18-23, 1979
Plain TeX, 11 pages, 5 figures. In "Intrinsic Stochasticity in Plasmas", edited by G. Laval and D. Gresillon (Editions de Physique Courtaboeuf, Orsay, 1979), pp. 159-168. Proc. Workshop on Intrinsic Stochasticity in Plasmas, Cargese, Corsica, June 18-23, 1979