Subnatural-linewidth fluorescent single photons

作     者：HE-BIN ZHANG GAO-XIANG LI YONG-CHUN LIU HE-BIN ZHANG;GAO-XIANG LI;YONG-CHUN LIU

作者机构：State Key Laboratory of Low-Dimensional Quantum PhysicsDepartment of PhysicsTsinghua UniversityBeijing 100084China Department of PhysicsHuazhong Normal UniversityWuhan 430079China Frontier Science Center for Quantum InformationBeijing 100084China 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2024年第12卷第4期

页      面：625-637页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：National Key Research and Development Program of China(2023YFA1407600) National Natural Science Foundation of China(12275145,92050110,91736106,11674390,91836302,11774118,11474119) Fundamental Research Funds for the Central Universities of MOE(CCNU18CXTD01,CCNU17TS0006) 

主　　题：quantum utilize optics 

摘      要：Subnatural-linewidth single photons are of vital importance in quantum optics and quantum information *** to previous research, it appears difficult to utilize resonance fluorescence to generate single photons with subnatural linewidth. Here we propose a universally applicable approach to generate fluorescent single photons with subnatural linewidth, which can be implemented based on Λ-shape and similar energy ***, the general condition to obtain fluorescent single photons with subnatural linewidth is *** single-photon linewidth can be easily manipulated over a broad range by external fields, which can be several orders of magnitude smaller than the natural linewidth. Our study can be easily implemented in various physical platforms with current experimental techniques and will significantly facilitate the research on the quantum nature of resonance fluorescence and the technologies in quantum information science.