Dynamical Instabilities and Deterministic Chaos in Ballistic Electron   Motion in Semiconductor Superlattices
  We consider the motion of ballistic electrons within a superlattice miniband under the influence of an alternating electric field. We show that the interaction of electrons with the self-consistent electromagnetic field generated by the electron current may lead to the transition from regular to chaotic dynamics. We estimate the conditions for the experimental observation of this deterministic chaos and discuss the similarities of the superlattice system with the other condensed matter and quantum optical systems. 
Kirill N. Alekseev, Gennady P. Berman, and David K. Campbell