论文标题
无序的波导耦合量子阵列中的手性驱动的离域
Chirality-driven delocalization in disordered waveguide-coupled quantum arrays
论文作者
论文摘要
从理论上讲，我们在通过波导模式的一维量子发射器中进行了定向不对称耦合与无序之间的竞争。我们的计算揭示了特征状态的高度非平凡的相图，这取决于疾病和方向性强度，这是非单调的。耦合不对称的增加驱动了从安德森（Anderson）在批量通过离域状态到手性诱导的阵列边缘定位的过渡。违反直觉，这种过渡不是被强大的疾病涂抹，而是变得更加清晰。我们的发现对于波导量子电动力学的迅速发展的领域可能很重要，手性相互作用和疾病起着至关重要的作用。
We study theoretically the competition between directional asymmetric coupling and disorder in a one-dimensional array of quantum emitters chirally coupled through a waveguide mode. Our calculation reveals highly nontrivial phase diagram for the eigenstates spatial profile, nonmonotonously depending on the disorder and directionality strength. The increase of the coupling asymmetry drives the transition from Anderson localization in the bulk through delocalized states to chirality-induced localization at the array edge. Counterintuitively, this transition is not smeared by strong disorder but becomes sharper instead. Our findings could be important for the rapidly developing field of the waveguide quantum electrodynamics, where the chiral interactions and disorder play crucial roles.
