SCHRODINGERS EQUATION AS A MODEL APPROACH TO SHORT TIME-SCALE QUANTUMKINETICS IN A SEMICONDUCTOR

We present a new approach to quantum kinetics based on a Schrodinger's equation formalism. As an example we apply this method to a coupled e lectron-LO phonon system in a semiconductor. We demonstrate that it is possible to compute the full many-body wave function of the electron- phonon system for short times. The time-dependent electron probability distribution, extracted from the many-body wave function, illustrates the non-Markovian nature of the early time kinetics. The retarded ons et of dissipation and kinetic energy overshoots are explained through virtual, nonresonant transitions.