Charged Particle Motion in Temporal Chaotic and Spatiotemporal
Chaotic Fields
ZHANG Hai-Yun, HE Kai-Fen
The Key Laboratory of Beam Technology and Materials Modification of Education Ministry, Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875 (mailing address) Beijing Radiation Center, Beijing 100875
Charged Particle Motion in Temporal Chaotic and Spatiotemporal
Chaotic Fields
ZHANG Hai-Yun; HE Kai-Fen
The Key Laboratory of Beam Technology and Materials Modification of Education Ministry, Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875 (mailing address) Beijing Radiation Center, Beijing 100875
Abstract： We investigated charged particle motion in temporal chaotic and spatiotemporal chaotic field. In its steady wave frame a few key modes of the solution of the driven/damped nonlinear wave equation are used as the field. It is found that in the spatiotemporal chaotic field the particle drifts relative to the steady wave, in contrast to that in the temporal chaotic field where the particle motion is localized in a trough of the wave field. The result is of significance for understanding stochastic acceleration of particles.
2002, Vol. 19 
