The effect of an external electric field on the optical properties of a quantum-dot molecule with a resonant state of the D 2 − center

Influence effect of an external electric field and dissipative tunneling on intracenter optical transitions in quantum molecules with D2- states

“…In the works of V. A. Bendersky, E. V. Vetoshkin and E. I. Kats (see, for example [16]) on basis of the instanton approach, E. Kats developed a quasi-classically exact method that makes it possible to solve the problem of tunneling splitting for symmetric double-well potentials in a wide energy range from the ground state to states located near the top of the barrier. The instanton method turned out to be productive in calculating the tunneling probability for QMs with H − -like quasistationary impurity states [17], where, in combination with the zero-range potential method, it was possible to obtain the main results in an analytical form and to analyze the effect of tunneling decay on the optical properties of QDs. The need to take into account the QM interaction in a quasi-zero-dimensional structure, as well as the influence of local phonon modes on the field dependence of the probability of dissipative tunneling, requires further development of the instanton method as applied to the optics of low-dimensional tunneling structures with impurity quasi-stationary states.…”