Experimental demonstration of separating the wave-particle duality of a single photon with the quantum Cheshire cat
作者机构：CAS Key Laboratory of Quantum InformationUniversity of Science and Technology of China230026 HefeiChina CAS Center for Excellence in Quantum Information and Quantum PhysicsUniversity of Science and Technology of China230026 HefeiChina Hefei National LaboratoryUniversity of Science and Technology of China230088 HefeiChina Theoretical Physics DivisionChern Institute of MathematicsNankai University300071 TianjinChina
出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)
年 卷 期：2023年第12卷第1期
页 面：128-135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 Innovation Program for Quantum Science and Technology(Nos.2021ZD0301200 and 2021ZD0301400) National Natural Science Foundation of China(Grant Nos.11821404,61725504,U19A2075,61975195,11875167,12275136,and 12075001) Anhui Initiative in Quantum Information Technologies(Grant No.AHY060300) Fundamental Research Funds for the Central Universities(Grant No.WK2030380017)
摘 要：As a fundamental characteristic of physical entities,wave-particle duality describes whether a microscopic entity exhibits wave or particle attributes depending on the specific experimental *** assumption is premised on the notion that physical properties are inseparable from the objective ***,after the concept of the quantum Cheshire cats was proposed,which makes the separation of physical attributes from the entity possible,the premise no longer ***,an experimental demonstration of the separation of the wave and particle attributes inspired by this scenario remains *** this work,we experimentally separated the wave and particle attributes of a single photon by exploiting the quantum Cheshire cat concept for the first *** applying a weak disturbance to the evolution of the system,we achieve an effect similar to the quantum Cheshire cat and demonstrated the separation of the wave and particle attributes via the extraction of weak *** work provides a new perspective for the in-depth understanding of wave-particle duality and promotes the application of weak measurements in fundamentals of quantum mechanics.
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