Steady-State Solution for Dark States Using a Three-Level System in Coupled Quantum Dots
Steady-State Solution for Dark States Using a Three-Level System in Coupled Quantum Dots
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DOI：
10.1143/jjap.51.02bj07
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发表时间：
2011-09
影响因子：
1.5
通讯作者：
T. Tanamoto;K. Ono;F. Nori
中科院分区：
文献类型：
--
作者：
T. Tanamoto;K. Ono;F. Nori
量子点是实现电磁场与电子相互连接的理想材料之一。暗态的出现是由于电磁场和系统的离散能级之间的相干性。本文从理论上求解了三能级双量子点系统密度矩阵方程的稳态解，并研究了暗态出现的条件。我们还数值显示的外观的暗态随时间变化的电流特性。
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.