Hertz-rate metropolitan quantum teleportation

Si Shen; Chenzhi Yuan; Zichang Zhang; Hao Yu; Ruiming Zhang; Chuanrong Yang; Hao Li; Zhen Wang; You Wang; Guangwei Deng; Haizhi Song; Lixing You; Yunru Fan; Guangcan Guo; Qiang Zhou

doi:10.1038/s41377-023-01158-7

Light: Science & Applications (May 2023)

Hertz-rate metropolitan quantum teleportation

Si Shen,
Chenzhi Yuan,
Zichang Zhang,
Hao Yu,
Ruiming Zhang,
Chuanrong Yang,
Hao Li,
Zhen Wang,
You Wang,
Guangwei Deng,
Haizhi Song,
Lixing You,
Yunru Fan,
Guangcan Guo,
Qiang Zhou

Affiliations

Si Shen: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China
Chenzhi Yuan: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China
Zichang Zhang: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China
Hao Yu: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China
Ruiming Zhang: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China
Chuanrong Yang: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China
Hao Li: Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
Zhen Wang: Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
You Wang: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China
Guangwei Deng: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China
Haizhi Song: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China
Lixing You: Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
Yunru Fan: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China
Guangcan Guo: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China
Qiang Zhou: Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China

DOI: https://doi.org/10.1038/s41377-023-01158-7
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 9

Abstract

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Abstract Quantum teleportation can transfer an unknown quantum state between distant quantum nodes, which holds great promise in enabling large-scale quantum networks. To advance the full potential of quantum teleportation, quantum states must be faithfully transferred at a high rate over long distance. Despite recent impressive advances, a high-rate quantum teleportation system across metropolitan fiber networks is extremely desired. Here, we demonstrate a quantum teleportation system which transfers quantum states carried by independent photons at a rate of 7.1 ± 0.4 Hz over 64-km-long fiber channel. An average single-photon fidelity of ≥90.6 ± 2.6% is achieved, which exceeds the maximum fidelity of 2/3 in classical regime. Our result marks an important milestone towards quantum networks and opens the door to exploring quantum entanglement based informatic applications for the future quantum internet.

Published in Light: Science & Applications

ISSN: 2047-7538 (Online)
Publisher: Nature Publishing Group
Country of publisher: United Kingdom
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: https://www.nature.com/lsa/

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