Singleparticle motion under the influence of the perpendicular ponderomotive force
Abstract
The motion of a single particle under the influence of the ponderomotive force directed perpendicular to the external magnetostatic field is analysed. By solving the exact equation of motion for a specific applied electromagnetic field, the resultant ponderomotive drift is compared with the prediction of a singleparticle theory using the oscillationcentre approximation. The regime of validity of this theory is discussed. It is shown that, for certain values of the amplitude and frequency of the electromagnetic field, the particle motion is unstable and therefore the concept of a singleparticle ponderomotive force is meaningless.
 Publication:

Journal of Plasma Physics
 Pub Date:
 June 1987
 DOI:
 10.1017/S0022377800012332
 Bibcode:
 1987JPlPh..37..497F