Wave and particle properties can be spatially separated in a quantum entity

作     者：PRATYUSHA CHOWDHURY ARUN KUMAR PATI JING-LING CHEN 

作者机构：Indian Institute of Technology GuwahatiGuwahatiAssam 781039India Quantum Information and Computation GroupHarish-Chandra Research InstituteJhunsiAllahabad 211019India Theoretical Physics DivisionChern Institute of MathematicsNankai UniversityTianjin 300071China 

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

年 卷 期：2021年第9卷第7期

页      面：1379-1383页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China(11875167 12075001) 

主　　题：properties. equation. quantum 

摘      要：Wave and particle are two fundamental properties of nature. The wave–particle duality has indicated that a quantum object may exhibit the behaviors of both wave and particle,depending upon the circumstances of the experiment. The major significance of wave–particle duality has led to a fundamental equation in quantum mechanics:the Schr?dinger equation. At present,the principle of wave–particle duality has been deeply rooted in people’s hearts. This leads to a common-sense perception that wave property and particle property coexist simultaneously in a quantum entity,and these two physical attributes cannot be completely separated from each other. In classical physics,a similar common-sense thought is that a physical system is inseparable from its physical ***,this has been recently challenged and beaten by a quantum phenomenon called the quantum Cheshire cat, in which a cat and its grin can be spatially separated. In this work,we propose a thought experiment based on the technology similar to the quantum Cheshire cat. We find that wave and particle attributes of a quantum entity can be completely separated,thus successfully dismantling the wave–particle duality for a quantum entity. Our result is still consistent with the complementarity principle and deepens the understanding of quantum foundations.