Schrödinger's Equation as a Model Approach to Short Time-Scale Quantum Kinetics in a Semiconductor
J. A. Kenrow, T. Kenneth Gustafson
We present a new approach to quantum kinetics based on a Schr\"odinger's equation formalism. As an example we apply this method to a coupled electron-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 onset of dissipation and kinetic energy overshoots are explained through virtual, nonresonant transitions.
Physical Review Letters•Oct 21, 1996•10 citations