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High-precision nonlocal temporal correlation identification of entangled photon pairs for quantum clock synchronization
文献类型：期刊论文
| 作者 | Quan, Runai2,3; Dong, Ruifang2,3; Xiang, Xiao2,3; Li, Baihong1,2,3; Liu, Tao2,3; Zhang, Shougang2,3 |
| 刊名 | REVIEW OF SCIENTIFIC INSTRUMENTS
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 91期号:12页码:6 |
| ISSN号 | 0034-6748 |
| DOI | 10.1063/5.0031166 |
| 英文摘要 | High-precision nonlocal temporal correlation identification in entangled photon pairs is critical to measure the time offset between remote independent time scales for many quantum information applications. The first nonlocal correlation identification was reported in 2009, which extracts the time offset via the algorithm of iterative fast Fourier transformations and their inverse. The best identification resolution is restricted by the peak identification threshold of the algorithm, and thus the time offset calculation precision is limited. In this paper, an improvement for the identification is presented both in resolution and precision via a modified algorithm of direct cross correlation extraction. A flexible resolution down to 1 ps is realized, which is only dependent on the least significant bit resolution of the time-tagging device. The attainable precision is shown to be mainly determined by the inherent timing jitter of single photon detectors, the acquired pair rate, and acquisition time, and a sub-picosecond precision (0.72 ps) has been achieved at an acquisition time of 4.5 s. This high-precision nonlocal measurement realization provides a solid foundation for the field applications of entanglement-based quantum clock synchronization, ranging, and communications. |
| 资助项目 | National Natural Science Foundation of China[12033007] ; National Natural Science Foundation of China[61801458] ; National Natural Science Foundation of China[61875205] ; National Natural Science Foundation of China[91836301] ; National Natural Science Foundation of China[12074309] ; "Western Young Scholar" Project of CAS[XAB2019B17] ; "Western Young Scholar" Project of CAS[XAB2019B15] ; Key R&D Program of Guangdong province[2018B030325001] ; Frontier Science Key Research Project of CAS[QYZDB-SSW-SLH007] ; Strategic Priority Research Program of CAS[XDC07020200] ; Chinese Academy of Sciences Key Project[ZDRW-KT-2019-1-0103] |
| WOS研究方向 | Instruments & Instrumentation ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000600123600001 |
| 出版者 | AMER INST PHYSICS |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Western Young Scholar" Project of CAS ; "Western Young Scholar" Project of CAS ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province ; Frontier Science Key Research Project of CAS ; Frontier Science Key Research Project of CAS ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Western Young Scholar" Project of CAS ; "Western Young Scholar" Project of CAS ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province ; Frontier Science Key Research Project of CAS ; Frontier Science Key Research Project of CAS ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Western Young Scholar" Project of CAS ; "Western Young Scholar" Project of CAS ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province ; Frontier Science Key Research Project of CAS ; Frontier Science Key Research Project of CAS ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Western Young Scholar" Project of CAS ; "Western Young Scholar" Project of CAS ; Key R&D Program of Guangdong province ; Key R&D Program of Guangdong province ; Frontier Science Key Research Project of CAS ; Frontier Science Key Research Project of CAS ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; Chinese Academy of Sciences Key Project ; Chinese Academy of Sciences Key Project |
| 源URL | [http://210.72.145.45/handle/361003/12106]  |
| 专题 | 中国科学院国家授时中心 |
| 通讯作者 | Dong, Ruifang |
| 作者单位 | 1.Xian Univ Sci & Technol, Coll Sci, Xian 710054, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 3.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 | Quan, Runai,Dong, Ruifang,Xiang, Xiao,et al. High-precision nonlocal temporal correlation identification of entangled photon pairs for quantum clock synchronization[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2020,91(12):6. |
| APA | Quan, Runai,Dong, Ruifang,Xiang, Xiao,Li, Baihong,Liu, Tao,&Zhang, Shougang.(2020).High-precision nonlocal temporal correlation identification of entangled photon pairs for quantum clock synchronization.REVIEW OF SCIENTIFIC INSTRUMENTS,91(12),6. |
| MLA | Quan, Runai,et al."High-precision nonlocal temporal correlation identification of entangled photon pairs for quantum clock synchronization".REVIEW OF SCIENTIFIC INSTRUMENTS 91.12(2020):6. |
入库方式： OAI收割
来源：国家授时中心
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