THEORY OF MULTIPLE EXCITONIC PEAKS IN THE LUMINESCENCE SPECTRA OF DOPED QUANTUM-WELLS IN A MAGNETIC-FIELD

We report calculations of the luminescence spectra of doped quantum we lls in a perpendicular magnetic field. We use the variational Hartree- Fock approximation and include Coulomb coupling of different Landau le vels to all orders. In the case of localized holes we obtain multiple excitonic peaks with an oscillator strength which increases towards th e chemical potential, in good agreement with recent experiments.