Steady-State Solution for Dark States Using a Three-Level System in Coupled Quantum Dots

Tetsufumi Tanamoto, Keiji Ono, Franco Nori
2012 Japanese Journal of Applied Physics  
Quantum dots (QDs) are one of the promising candidates of interconnection between electromagnetic field and electrons in solid-state devices. Dark states appear as a result of coherence between the electromagnetic fields and the discrete energy levels of the system. Here, we theoretically solve the steady-state solutions of the density matrix equations for a thee-level double QD system and investigate the condition of the appearance of a dark state. We also numerically show the appearance of
more » ... he appearance of the dark state by time-dependent current characteristics.
doi:10.1143/jjap.51.02bj07 fatcat:2pnptwbtdneq7mq6ywhtwgq3ji