2019_EJRNL_PP_FAN_WU_1.pdf
Terbatas Ratnasari
» ITB
Terbatas Ratnasari
» ITB
It is well known that resonance phenomena can destroy adiabatic invariance and cause chaos and mixing.
In the present Rapid Communication, we show that a nonlinear wave-particle resonant interaction may do
the opposite—generate large-scale coherent structures in phase space. The combined action of the drift due to nonlinear scattering on resonance and trapping (capture) into resonance creates a convection cell-like structure, where the areas of particle acceleration and deceleration are macroscopically separated. At the same time, nonlinear scattering also creates a diffusion that cause mixing on and between the energy levels.