Electron–hole complexes assisted tunneling in the electrostatically connected quantum dots

The quantum tunneling processes in an optically excited single-electron tunneling quantum dot electrostatically coupled to a p-type side quantum dot have been investigated. The physical implications of the resonance mechanisms participating in the tunneling processes have been analyzed in an analytical and numerical methods. Each of the tunneling current peaks has been associated with a particular resonance mechanism by the detailed numerical examination on resonance probability distributions.