文献类型：期刊文献

英文题名：Quantum nonreciprocity based on electromagnetically induced transparency in chiral quantum-optical systems

作者：You, Yu[1,2];Hu, Yiqi[1,2];Lin, Gongwei[1];Qi, Yihong[1];Niu, Yueping[1,3];Gong, Shangqing[1,3]

机构：[1]East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[3]Shanghai Engn Res Ctr Hierarch Nanomat, Shanghai 200237, Peoples R China

年份：2021

卷号：103

期号：6

外文期刊名：PHYSICAL REVIEW A

收录：;EI(收录号：20212510531837);WOS:【SCI-EXPANDED(收录号:WOS:000661124600004)】；

基金：This work was supported by the National Natural Science Foundation of China (Grants No. 11674094, No. 11774089, No. 11874146, No. 11981260012, and No. 12034007) and the Shanghai Natural Science Foundation (Grants No. 18ZR1410500 and No. 18DZ2252400).

语种：英文

外文关键词：Particle beams - Insertion losses - Transparency - Quantum optics

摘要：On-chip single-photon nonreciprocal devices with high isolation and low insertion loss become a key element in quantum information processing. Based on electromagnetically induced transparency in chiral quantum systems, a single-photon isolator and a single-photon circulator are obtained without requiring unbalanced coupling. These devices have high isolation and low insertion loss. Moreover, their bandwidths are significantly broadened with the assistance of electromagnetically induced transparency.