Asymmetrical semi-exponential potential effect of exciton in strong-coupling alkali halide quantum well

摘要

Within the framework of the method of Lee-Low-Pines unitary transformations and variations, strong-coupling exciton-longitudinal-optical (LO) phonon interaction in asymmetric semi-exponential potential quantum wells was investigated. It is shown that the self-trapping energy, effective potential and vibration frequency of the exciton, depends significantly on the parameters of the confined potential, electron-hole distance and electron-hole mass.