THEORY OF ELECTRONIC AND OPTICAL-PROPERTIES OF MAGNETOEXCITONS IN QUANTUM-WELL WIRES

Binding energies and linear optical properties of quasi-one-dimensiona l excitons in a quantum wire in strong magnetic fields are predicted. It is shown that magnetoexcitons confined in a quantum-well wire posse ss a hydrogenic spectrum with bound states and a continuum of scatteri ng states, in contrast to two-dimensional magnetoexcitons that are alw ays bound. The appearance and shape of Fano resonances in the optical spectra are explained and the influence of the Coulomb interaction on the optical spectra is discussed both analytically and numerically.