Gausian packets and beams with focal points in vector problems of plasma physics

A. Yu. Anikin   ; S. Yu. Dobrokhotov   ; A. I. Klevin   ; B. Tirozzi

Teoretičeskaâ i matematičeskaâ fizika, Tome 196 (2018) no. 1, pp. 135-160

Résumé

We consider a linearized equation describing plasma motion in a toroidal domain (tokamak) and study the asymptotic forms of steady-state solutions of the Gaussian beam type with a short wave length, which correspond to electric modes. We also study Gaussian wave packets and localized “cigar”-type beams describing the transmission of localized perturbations through the tokamak chamber. We separately consider the case of focal points on a trajectory and the asymptotic forms in a neighborhood of a focal point.

Détail

Keywords: linearized plasma equation, Maslov complex germ, Gaussian beam.
Mots-clés : tokamak

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