Electronic structure of a GaAs quantum well in an electric field

We apply the stabilization method of quantum chemistry and calculate the energies and widths of resonances of an isolated quantum well in an electric field. We calculate the Stark shifts and tunneling times across the barrier for a single GaAs quantum well. We also test the theories under discussion for the band-edge discontinuities. Our results show a better agreement with recent experimental measurements when we use 57%-43% of the band gap for the band-edge discontinuities of electrons and holes, respectively.