论文标题
光学驱动$ V $ -Type量子点链中的单向量子传输
Unidirectional Quantum Transport in Optically Driven $V$-type Quantum Dot Chains
论文作者
论文摘要
我们预测一种在连续驱动的INAS/GAAS半导体量子点具有$ V $ -Type转换的机制。这种高度平衡的稳态是由$ v $ type的频带间过渡和由声音声子引入的非马克维亚的反谐波机制之间的相互作用。种群捕获机制被推广到一系列耦合发射器。利用种群倒置，我们预测了从链的一端到另一端的单向激发转运，而没有外部偏见，而与单一的互轴耦合机制无关。
We predict a mechanism for achieving complete population inversion in a continuously driven InAs/GaAs semiconductor quantum dot featuring $V$-type transitions. This highly nonequilibrium steady state is enabled by the interplay between $V$-type interband transitions and a non-Markovian decoherence mechanism, introduced by acoustic phonons. The population trapping mechanism is generalized to a chain of coupled emitters. Exploiting the population inversion, we predict unidirectional excitation transport from one end of the chain to the other without external bias, independent of the unitary interdot coupling mechanism.
