A theoretical model was presented for linear susceptibility using density matrix theory for Y-configuration of double quantum dots (QDs) system including spontaneously generated coherence (SGC). Two SGC components are included for this system: V, and Λ subsystems. It is shown that at high V-component, the system have a giga gain. At low Λ-system component; it is possible to controls the light speed between superluminal and subluminal using one parameter by increasing SGC component of the V-system. This have applications in quantum information storage and spatially-varying temporal clock.
Al-Nashy, B., Razzaghi, S., Al-Musawi, M. A., Rasooli Saghai, H., & Al-Khursan, A. H. (2017). Giant gain from spontaneously generated coherence in Y-type double quantum dot structure. Results in Physics, 7, 2411–2416. https://doi.org/10.1016/j.rinp.2017.06.018