论文标题
操纵单光子传输在波导QED结构中，该结构包含两个巨型原子
Manipulating single-photon transport in a waveguide-QED structure containing two giant atoms
论文作者
论文摘要
我们研究了包含两个巨型原子的波导QED结构中相干的单光子转运。得出了适用于不同拓扑结构的单光子散射幅度的统一分析表达式。详细分析了不同参数状态的光谱特征，尤其是非对称的FANO线形状和电磁诱导的透明度（EIT）样光谱。具体而言，我们发现Fano线形状的外观不仅受耦合点之间的相位延迟，而且还受系统拓扑之间的影响。我们还通过分析主方程并通过检查散射光谱的相应分析表达来概述EIT样光谱的总体条件。这些现象可能会提供强大的工具来控制和操纵未来量子网络中的光子传输。
We investigate coherent single-photon transport in a waveguide-QED structure containing two giant atoms. The unified analytical expressions of the single-photon scattering amplitudes applicable for different topological configurations are derived. The spectroscopic characteristics in different parameter regimes, especially the asymmetric Fano line shapes and the electromagnetically induced transparency (EIT)-like spectra, are analyzed in detail. Specifically, we find that the appearance of Fano line shapes is influenced by not only the phase delays between coupling points but also the topologies of system. We also summarize the general conditions for appearance of EIT-like spectra by analyzing the master equation and verify these conditions by checking the corresponding analytical expressions of the scattering spectra. These phenomena may provide powerful tools for controlling and manipulating photon transport in future quantum networks.
