Quantum-limited resolution of partially coherent sources

作     者：王犇 胥亮 夏弘宽 张傲男 郑凯敏 张利剑 Ben Wang;Liang Xu;Hongkuan Xia;Aonan Zhang;Kaimin Zheng;Lijian Zhang

作者机构：National Laboratory of Solid State Microstructures and College of Engineering and Applied SciencesNanjing UniversityNanjing 210093China Research Center for Quantum SensingZhejiang LabHangzhou 310000China 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2023年第21卷第4期

页      面：109-114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：supported by the National Key Research and Development Program of China(Nos.2018YFA0306202 and 2017YFA0303703) the National Natural Science Foundation of China(Nos.91836303,61975077,61490711,and 11690032) the Fundamental Research Funds for the Central Universities(No.020214380068) 

主　　题：quantum metrology quantum imaging partial coherence 

摘      要：Discriminating two spatially separated sources is one of the most fundamental problems in *** research based on quantum parameter estimation theory shows that the resolution limit of two incoherent point sources given by Rayleigh can be ***,in realistic optical systems,there often exists coherence in the imaging light field,and there have been efforts to analyze the optical resolution in the presence of partial ***,how the degree of coherence between two point sources affects the resolution has not been fully ***,we analyze the quantum-limited resolution of two partially coherent point sources by explicitly relating the state after evolution through the optical systems to the coherence of the *** particular,we consider the situation in which coherence varies with the *** propose a feasible experiment scheme to realize the nearly optimal measurement,which adaptively chooses the binary spatial-mode demultiplexing measurement and direct *** results will have wide applications in imaging involving coherence of light.