Chaotic dynamics of electron resonant tunneling in a quasi-one-dimensional superlattice
POSTER
Abstract
A novel approach is employed for studying the dynamics of electron resonant tunneling in a quasi-one-dimensional superlattice. The semiclassical force-balance transport equation is used to describe the time-dependence of the dynamical equation for the electron center-of-mass velocity in the presence of an applied DC electric field and two external AC fields. Evolution of phase space trajectories from initial non-equilibrium states is obtained. The attractors of this dynamical system are determined and their stability for different sets of system parameters is obtained. Coupling between the electron's velocity and the external fields gives rise to rich spatiotemporal behavior including chaos.