Nonlinear Gyrokinetic Theory With Polarization Drift
Authors: L. Wang and T.S. Hahm
Abstract:
A set of the electrostatic toroidal gyrokinetic Vlasov equation and the Poisson equation, which explicitly includes the polarization drift, is derived systematically by using Lie-transform method. The polarization drift is introduced in the gyrocenter equations of motion, and the corresponding polarization density is derived. Contrary to the wide-spread expectation, the inclusion of the polarization drift in the gyrocenter equations of motion does not affect the expression for the polarization density significantly. This is due to modification of the gyrocenter phase-space volume caused by the electrostatic potential [T. S. Hahm, Phys. Plasmas 3, 4658 (1996)] .
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Submitted to: Physics of Plasmas (March 2010)
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Download PPPL-4507 (pdf 201 KB 15 pp)
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