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Quantum clock synchronization over 20-km multiple segmented fibers with frequency-correlated photon pairs and HOM interference

文献类型：期刊论文

作者Liu, Yuting1,2; Quan, Runai1,2; Xiang, Xiao1,2; Hong, Huibo1,2; Cao, Mingtao1,2; Liu, Tao1,2; Dong, Ruifang1,2; Zhang, Shougang1,2
刊名APPLIED PHYSICS LETTERS
出版日期2021-10-04
卷号119期号:14页码:6
ISSN号0003-6951
DOI10.1063/5.0061478
英文摘要The quantum clock synchronization based on frequency-correlated photon pairs and HOM interference has shown femtosecond-level precision and great application prospect in numerous fields depending on high-precision time-frequency signals. Due to the difficulty of achieving stable HOM interference fringe after long-distance fiber transmission, this scheme of synchronization is hampered from long-haul field application. Utilizing segmented fibers instead of a single long-length fiber, we achieved the stable observation of the two-photon interference of the lab-developed broadband frequency-correlated photon pairs after 20 km-long fiber transmission, without employing the auxiliary phase stabilization method. Referenced to this interference fringe, the balance of the two fiber arms is achieved with a long-term stability of 20 fs. The HOM-interference-based synchronization over a 20-km fiber link is thus demonstrated, and a minimum stability of 74 fs has been reached at 48 000 s. This result not only provides a simple way to stabilize the fiber-optic two-photon interferometer for long-distance quantum communication systems but also makes a great stride forward in extending the quantum-interference-based synchronization scheme to the long-haul field applications.
WOS关键词DISPERSION
资助项目National Natural Science Foundation of China[12033007] ; National Natural Science Foundation of China[61875205] ; National Natural Science Foundation of China[61801458] ; National Natural Science Foundation of China[91836301] ; Frontier Science Key Research Project of Chinese Academy of Sciences[QYZDB-SSW-SLH007] ; Strategic Priority Research Program of CAS[XDC07020200] ; "Western Young Scholar" Project of CAS[XAB2019B17] ; "Western Young Scholar" Project of CAS[XAB2019B15] ; Chinese Academy of Sciences Key Project[ZDRW-KT-2019-1-0103] ; Youth Innovation Promotion Association, CAS[2021408]
WOS研究方向Physics
语种英语
出版者AIP Publishing
WOS记录号WOS:000725031800004
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; "Western Young Scholar" Project of CAS ; "Western Young Scholar" Project of CAS ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; "Western Young Scholar" Project of CAS ; "Western Young Scholar" Project of CAS ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; "Western Young Scholar" Project of CAS ; "Western Young Scholar" Project of CAS ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; "Western Young Scholar" Project of CAS ; "Western Young Scholar" Project of CAS ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS
源URL[http://210.72.145.45/handle/361003/13999]  
专题国家授时中心_量子频标研究室
通讯作者Dong, Ruifang
作者单位1.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Yuting,Quan, Runai,Xiang, Xiao,et al. Quantum clock synchronization over 20-km multiple segmented fibers with frequency-correlated photon pairs and HOM interference[J]. APPLIED PHYSICS LETTERS,2021,119(14):6.
APA Liu, Yuting.,Quan, Runai.,Xiang, Xiao.,Hong, Huibo.,Cao, Mingtao.,...&Zhang, Shougang.(2021).Quantum clock synchronization over 20-km multiple segmented fibers with frequency-correlated photon pairs and HOM interference.APPLIED PHYSICS LETTERS,119(14),6.
MLA Liu, Yuting,et al."Quantum clock synchronization over 20-km multiple segmented fibers with frequency-correlated photon pairs and HOM interference".APPLIED PHYSICS LETTERS 119.14(2021):6.

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