Diabolical points in coupled active cavities with quantum emitters

查看全文 作　　者：Jingnan [1,2]Yang;Chenjiang [1,2]Qian;Xin [1,2]Xie;Kai [1,2]Peng;Shiyao [1,2]Wu;Feilong [1,2]Song;Sibai [1,2]Sun;Jianchen [1,2]Dang;Yang [1,2]Yu;Shushu [1,2]Shi;Jiongji [1,2]He;Matthew [3]JSteer;Iain [3]GThayne;Bei-Bei [1]Li;Fang [4]Bo;Yun-Feng [5]Xiao;Zhanchun [1,2]Zuo;Kuijuan [1,2,6]Jin;Changzhi [1,2]Gu;Xiulai [1,2,6]Xu

机构地区：[1]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;[2]CAS Center for Excellence in Topological Quantum Computation and School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;[3]School of Engineering,University of Glasgow,Glasgow G128LT,UK;[4]The MOE Key Laboratory of Weak Light Nonlinear Photonics,TEDA Applied Physics Institute and School of Physics,Nankai University,Tianjin 300457,China;[5]State Key Laboratory for Mesoscopic Physics and Collaborative Innovation Center of Quantum Matter,School of Physics,Peking University,Beijing,China;[6]Songshan Lake Materials Laboratory,Dongguan 523808 Guangdong,China

出　　处：《Light(Science & Applications)》索引2020年第9卷第1期,共8页

基　　金：supported by the National Natural Science Foundation of China under Grant No.11934019,No.11721404,No.51761145104,No.61675228,and No.11874419;the Ministry of Science and Technology of China under Grant No.2016YFA0200400;the Strategic Priority Research Program under Grant No.XDB07030200,No.XDB28000000,and No.XDB07020200;the Instrument Developing Project under Grant No.YJKYYQ20180036;the Interdisciplinary Innovation Team of the Chinese Academy of Sciences;the Key R&D Program of Guangdong Province under Grant No.2018B030329001. 摘　　要：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. 关键词：QUANTUM BACKSCATTERING DIRECTIONS

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Diabolical points in coupled active cavities with quantum emitters

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