Polaron contributions to the biexciton binding energies in self-assembled quantum dots

Abstract

The contribution to the biexciton binding energy in quantum dots resulting from the interaction with longitudinal optical phonons is estimated by performing the configuration--interaction calculation of the few-particle states in a simple model of the confining potential and including the phonon corrections by means of a perturbation theory. It is found that the polaron contribution tends to compensate the Coulomb-related biexciton shift (binding energy) and reduces its value by several to even 30%, depending on the material parameters of the system.

4 pqges, 2 color figures; moderately modified version

References in corpus (3)

• Full configuration interaction approach to the few-electron problem in artificial atoms
• Non-orthogonal Theory of Polarons and Application to Pyramidal Quantum Dots
• Two-phonon polaron resonances in self-assembled quantum dots