Three-photon polarization entanglement of green light

被引：0
|
作者：
Lou, Yan-Chao [1 ,2 ]
Ren, Zhi-Cheng [1 ,2 ]
Chen, Chao [1 ,2 ]
Wan, Pei [1 ,2 ]
Zhu, Wen-Zheng [1 ,2 ]
Wang, Jing [1 ,2 ]
Xue, Shu-Tian [1 ,2 ]
Dong, Bo-Wen [1 ,2 ]
Ding, Jianping [1 ,2 ]
Wang, Xi-Lin [1 ,2 ,3 ,4 ]
Wang, Hui-Tian [1 ,2 ,5 ]
机构：
[1] Nanjing Univ, Sch Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China
[3] Hefei Natl Lab, Hefei 230088, Peoples R China
[4] Univ Sci & Technol China, Synerget Innovat Ctr, Quantum Informat & Quantum Phys, Hefei 230026, Anhui, Peoples R China
[5] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China
来源：
PHYSICAL REVIEW APPLIED | 2024年 / 22卷 / 01期
基金：
中国博士后科学基金; 中国国家自然科学基金; 国家重点研发计划;
关键词：
ANGULAR-MOMENTUM STATES; QUANTUM TELEPORTATION; SINGLE PHOTONS; INFORMATION;
D O I：
10.1103/PhysRevApplied.22.014052
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Recently, great progress has been made in the entanglement of multiple photons at various wavelengths and with different degrees of freedom for optical quantum information applied in diverse scenarios. However, multiphoton entanglement in the transmission window of green light under water has not yet been reported. Here, by combining femtosecond-laser-based multiphoton entanglement and entanglement-maintaining frequency up-conversion techniques, we successfully generate a green two- photon polarization-entangled Bell state and a green three-photon Greenberger-Horne-Zeilinger state, whose state fidelities are 0.893 +/- 0.002 and 0.595 +/- 0.023, respectively. Our result provides a scalable method to prepare green multiphoton entanglement, which may have wide applications in underwater quantum information.
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页数：8
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