Experimental demonstration of Einstein-Podolsky-Rosen entanglement in rotating coordinate space

作     者：Kai Wang Dong-Sheng Ding Wei Zhang Qiong-Yi He Guang-Can Guo Bao-Sen Shi 王锴;丁冬生;张伟;何琼毅;郭光灿;史保森

作者机构：Key Laboratory of Quantum InformationUniversity of Science and Technology of ChinaHefei 230026China School of Instrument Science and Opto-Electronics EngineeringBeihang UniversityBeijing 100191China Hefei Innovation Research InstituteBeihang UniversityHeifei 230013China Synergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of ChinaHefei 230026China Wang Da-Heng Collaborative Innovation Center for Science of Quantum Manipulation and ControlHeilongjiang Province and Harbin University of Science and TechnologyHarbin 150080China State Key Laboratory for Mesoscopic PhysicsSchool of PhysicsNano-optoelectronics Frontier Center of the Ministry of Education&Collaborative Innovation Center of Quantum MatterPeking UniversityBeijing 100871China Beijing Academy of Quantum Information SciencesBeijing 100193China Collaborative Innovation Center of Extreme OpticsShanxi UniversityTaiyuan 030006China 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2020年第65卷第4期

页      面：280-285页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：supported by the National Key R&D Program of China (2017YFA0304800) the National Natural Science Foundation of China (11934013, 61525504, 61722510, 61435011, and 11604322) the Innovation Fund from Chinese Academy of Sciences and Anhui Initiative in Quantum Information Technologies (AHY020200) the Youth Innovation Promotion Association of Chinese Academy of Sciences (2018490) Qiong-Yi He acknowledges the support of the National Key R&D Program of China(2016YFA0301302 and 2018YFB1107200) the National Natural Science Foundation of China (11622428 and 61675007) the Key R&D Program of Guangzhou Province (2018B030329001) Beijing Natural Science Foundation (Z190005) 

主　　题：Einstein-Podolsky-Rosen entanglement Rotating coordinate space Ghost imaging Ghost interference Quantum communication Distant quantum image processing 

摘      要：Einstein-Podolsky-Rosen(EPR) entanglement involving a pair of particles entangled in their positions and momenta is of special interest in the field of quantum information. Previously, EPR entanglement has been studied in different physical systems but in fixed coordinate spaces. Here, we demonstrate an experiment of ghost imaging and ghost interference in rotated position-momentum spaces by using positionmomentum entangled photons generated from a hot atomic ensemble. By using different image objects,the measured position-momentum correlations exhibit intriguing dynamics, including gradual decrease and axis-independent EPR entanglement. The reported results on manipulating the EPR entanglement in rotating coordinate spaces hold promise in quantum communication and distant quantum image processing.