New type of dynamic quantum wells and quantum dots

摘要

Electron movement in a spatially periodic high frequency electric field is considered. If the spatial period is small enough and the frequency is sufficiently high, the effect of this field on the charged particle is in a sense equivalent to the effect of a time-independent effective potential that is a sequence of deep `dynamic' quantum wells where the electrons are confined. A physical model is proposed which could be described in terms of the Hamiltonian model. Also the influence of external quantizing magnetic field on such a quantum well is considered and the existence of quantum dot in this system is demonstrated.