Small excitonic complexes in a disk-shaped quantum dot
arXiv:cond-mat/9910518 · doi:10.1016/S1386-9477(99)00327-6
Abstract
Confined excitonic complexes in two dimensions, consisting of N_e electrons and N_h holes, are studied by means of Bethe-Goldstone equations. Systems with up to twelve pairs, and asymmetric configurations with N_e \ne N_h are considered. The weak confinement regime gives indication of weak binding or even unbinding in the triexciton and the four-exciton system, and binding in the higher complexes.
13 pages, 4 figures, submitted to Physica E