Steady-state solution for dark states using a three-level system in coupled quantum dots

Abstract

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 the dark state by time-dependent current characteristics.

Noise properties in the Coulomb blockade region of FinFETs

“…In Ref. 19, we have shown basic results of our experiments. In this study, we have extended the experiments and newly added Figs.…”

“…In this study, we experimentally investigated the transport properties of a commercial p-type FinFET, focusing on the noise characteristics in the low-temperature region. 19) The time-dependent noise characteristics were analyzed and compared using a simple simulation. It was demonstrated that the conventional FinFET exhibited a clear Coulomb blockade (CB) and could be treated as a QD in the lowtemperature region.…”