Nonreciprocal transition between two indirectly coupled energy levels

作     者：Xun-Wei Xu Hai-Quan Shi Ai-Xi Chen Xun-Wei Xu;Hai-Quan Shi;Ai-Xi Chen

作者机构：Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of EducationKey Laboratory for Matter Microstructure and Function of Hunan ProvinceDepartment of Physics and Synergetic Innovation Center for Quantum Effects and ApplicationsHunan Normal UniversityChangsha 410081China Department of Applied PhysicsEast China Jiaotong UniversityNanchang 330013China Department of PhysicsZhejiang Sci-Tech UniversityHangzhou 310018China 

出 版 物：《Frontiers of physics》 (物理学前沿（英文版）)

年 卷 期：2022年第17卷第4期

页      面：153-161页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(NSFC)under Grant No.12064010 the Natural Science Foundation of Hunan Province of China under Grant No.2021JJ20036,and the Natural Science Foundation of Jiangxi Province of China under Grant No.20192ACB21002.A.-X.C.is supported by NSFC under Grant No.11775190 

主　　题：nonreciprocal transition time reversal symmetry synthetic magnetic flux spontaneous emission spectrum 

摘      要：We propose a theoretical scheme to realize nonreciprocal transition between two energy levels that can not coupled *** they are coupled indirectly by two auxiliary levels with a cyclic four-level configuration,and the four transitions in the cyclic configuration are controlled by external *** indirectly transition become nonreciprocal when the time reversal symmetry of the system is broken by the synthetic magnetic flux,i.e.,the total phase of the external driving fields through the cyclic four-level *** nonreciprocal transition can be identified by the elimination of a spectral line in the spontaneous emission *** work introduces a feasible way to observe nonreciprocal transition in a wide range of multi-level systems,including natural atoms or ions with parity symmetry.