STOCHASTIC DYNAMICS IN THE INTERACTION OF MAGNETIZED ELECTRONS AND ELECTROMAGNETIC-WAVES WITH ORDINARY-MODE POLARIZATION

In the present work we perform analytical and numerical investigations on the conditions under which there occurs stochastic exchange of energy between unidirectionally magnetized electrons and perpendicular electromagnetic waves that propagate with ordinary-mode polarization. It is observed that for low amplitudes of the fluctuating field, the electronic dynamics is essentially regular for small initial energies. On the other hand, for larger energies, the dynamics may be chaotic. It is also shown that stochastic energy excursions may be larger than resonant ones.