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Diabolical points in coupled active cavities with quantum emitters
Light: Science & Applications ( IF 20.6 ) Pub Date : 2020-01-13 , DOI: 10.1038/s41377-020-0244-9
Jingnan Yang 1, 2 , Chenjiang Qian 1, 2 , Xin Xie 1, 2 , Kai Peng 1, 2 , Shiyao Wu 1, 2 , Feilong Song 1, 2 , Sibai Sun 1, 2 , Jianchen Dang 1, 2 , Yang Yu 1, 2 , Shushu Shi 1, 2 , Jiongji He 1, 2 , Matthew J Steer 3 , Iain G Thayne 3 , Bei-Bei Li 1 , Fang Bo 4 , Yun-Feng Xiao 5 , Zhanchun Zuo 1, 2 , Kuijuan Jin 1, 2, 6 , Changzhi Gu 1, 2 , Xiulai Xu 1, 2, 6
Affiliation  

In single microdisks, embedded active emitters intrinsically affect the cavity modes of the microdisks, resulting in trivial symmetric backscattering and low controllability. Here we demonstrate macroscopic control of the backscattering direction by optimizing the cavity size. The signature of the positive and negative backscattering directions in each single microdisk is confirmed with two strongly coupled microdisks. Furthermore, diabolical points are achieved at the resonance of the two microdisks, which agrees well with theoretical calculations considering the backscattering directions. Diabolical points in active optical structures pave the way for an implementation of quantum information processing with geometric phase in quantum photonic networks.



中文翻译:

与量子发射器耦合的有源腔中的恶魔点

在单个微盘中,嵌入式有源发射器本质上会影响微盘的腔模式,导致微不足道的对称反向散射和低可控性。在这里,我们通过优化腔尺寸展示了对反向散射方向的宏观控制。每个单个微盘中正负反向散射方向的特征通过两个强耦合微盘来确认。此外,在两个微盘的共振处实现了恶魔点,这与考虑反向散射方向的理论计算非常吻合。有源光学结构中的恶魔点为在量子光子网络中实现几何相位的量子信息处理铺平了道路。

更新日期:2020-01-13
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