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.
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)
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
