Deterministic Time-Bin Entanglement between a Single Photon and an Atomic Ensemble

被引：18
|
作者：
Sun, Peng-Fei [1 ,2 ,3 ]
Yu, Yong [1 ,2 ,3 ]
An, Zi-Ye [1 ,2 ,3 ]
Li, Jun [1 ,2 ,3 ]
Yang, Chao-Wei [1 ,2 ,3 ]
Bao, Xiao-Hui [1 ,2 ,3 ]
Pan, Jian-Wei [1 ,2 ,3 ]
机构：
[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China
[3] Univ Sci & Technol China, CAS Ctr Excellence Quantum Informat & Quantum Phy, Hefei 230026, Anhui, Peoples R China
来源：
PHYSICAL REVIEW LETTERS | 2022年 / 128卷 / 06期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
QUANTUM MEMORY; NONLINEAR OPTICS; COLD ATOMS; EFFICIENT; LIGHT; INTERFACE;
D O I：
10.1103/PhysRevLett.128.060502
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Hybrid matter-photon entanglement is the building block for quantum networks. It is very favorable if the entanglement can be prepared with a high probability. In this Letter, we report the deterministic creation of entanglement between an atomic ensemble and a single photon by harnessing the Rydberg blockade. We design a scheme that creates entanglement between a single photon's temporal modes and the Rydberg levels that host a collective excitation, using a process of cyclical retrieving and patching. The hybrid entanglement is tested via retrieving the atomic excitation as a second photon and performing correlation measurements, which suggest an entanglement fidelity of 87.8%. Our source of matter-photon entanglement will enable the entangling of remote quantum memories with much higher efficiency.
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页数：6
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