title: Photoluminescence of a quantum dot hybridized with a continuum of extended states.
abstract: We calculate the intensity of photon emission from a trion in a single quantum dot, as a function of energy and gate voltage, using the impurity Anderson model and variational wave functions. Assuming a flat density of conduction states and constant hybridization energy, the results agree with the main features observed in recent experiments: nonmonotonic dependence of the energy on gate voltage, non-Lorentzian line shapes, and a linewidth that increases near the regions of instability of the single electron final state to occupations zero or two.
authors.affiliation: Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atómica, 8400 Bariloche, Argentina.
authors.forename: L M
authors.initials: LM
authors.lastname: León Hilario
authors.forename: A A
authors.initials: AA
authors.lastname: Aligia