Simultaneous Measurement of Fringe Visibility and Path Predictability of Wave-Particle Duality  

Simultaneous Measurement of Fringe Visibility and Path Predictability of Wave-Particle Duality

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作  者:Jie-Hui Huang Tao Peng Luo-Jia Wang Shi-Yao Zhu 黄接辉;彭涛;王珞珈;朱诗尧(Texas A&M University, College Station;College of Physics and Communication Electronics, Jiangxi Normal University;Department of Physics, Zhejiang University)

机构地区:[1]Texas A&M University,College Station,Texas 77843,USA [2]College of Physics and Communication Electronics,Jiangxi Normal University,Nanchang 330022 [3]Department of Physics,Zhejiang University,Hangzhou 310027

出  处:《Chinese Physics Letters》2018年第8期32-35,共4页中国物理快报(英文版)

基  金:Supported by the National Science Foundation(INSPIRE CREATIV)under Grant No PHY-1241032;the Robert A.Welch Foundation under Grant No A-1261;the National Natural Science Foundation of China under Grant No 11664018

摘  要:An experimental scheme to simultaneously obtain the information of fringe visibility and path predictability is designed. In a modified Young's double-slit experiment, two density filters rotating at different frequencies are placed before the two pineholes to encode path information. The spatial and temporal distributions of the output provide us with the wave and particle information of the single photons, respectively. The simultaneous measurement of the wave and particle information inevitably disturbs the system and thus causes some loss of the duality information, which is equal to the mixedness of the photonic state behind the density filters.An experimental scheme to simultaneously obtain the information of fringe visibility and path predictability is designed. In a modified Young's double-slit experiment, two density filters rotating at different frequencies are placed before the two pineholes to encode path information. The spatial and temporal distributions of the output provide us with the wave and particle information of the single photons, respectively. The simultaneous measurement of the wave and particle information inevitably disturbs the system and thus causes some loss of the duality information, which is equal to the mixedness of the photonic state behind the density filters.

关 键 词:exp Simultaneous Measurement of Fringe Visibility and Path Predictability of Wave-Particle Duality 

分 类 号:O431.2[机械工程—光学工程]

 

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