Simulation and realization of a second-order quantum-interference-based quantum clock synchronization at the femtosecond level

doi:10.1364/OL.44.000614

NTSC-IR

	Simulation and realization of a second-order quantum-interference-based quantum clock synchronization at the femtosecond level
	Quan, Runai 1,2; Dong, Ruifang 1,2; Zhai, Yiwei 1,2; Hou, Feiyan 1,2; Xiang, Xiao 1,2; Zhou, Hui 3,4; Lv, Chaolin 3,4; Wang, Zhen 3,4; You, Lixing 3,4; Liu, Tao 1,2; Zhang, Shougang 1,2
	2019-02-01
发表期刊	OPTICS LETTERS
ISSN	0146-9592
卷号	44 期号:3 页码:614-617
摘要	Quantum dock synchronization schemes utilizing frequency-entangled pulses have flourished for their potentially superior precision to the classical protocols. In this Letter, a new experimental record based on the second-order quantum interference algorithm is reported, to the best of our knowledge. The synchronization accuracy between two parties separated by a 6 km fiber coiling link, which is evaluated by the time offset shift relative to that with the fibers removed, has been measured to be 13 +/- 1 ps. The stability in terms of time deviation (TDEV) of 0.81 ps at an averaging time of 100 s has been achieved. The long-term synchronization stability is seen determined by the measurement device, and a minimum stability of 60 fs has been reached at 25,600 s. Furthermore, for the first time to the best of our knowledge, we quantify the performance of this quantum syndironization scheme, and very good agreements with the experimental results have been achieved. According to the quantum simulation, further improvements for both the synchronizing stability and accuracy can be expected. (C) 2019 Optical Society of America
资助者	National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Major Research Plan ; Major Research Plan ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Youth Talent Support Program of China ; National Youth Talent Support Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Major Research Plan ; Major Research Plan ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Youth Talent Support Program of China ; National Youth Talent Support Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Major Research Plan ; Major Research Plan ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Youth Talent Support Program of China ; National Youth Talent Support Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Major Research Plan ; Major Research Plan ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Youth Talent Support Program of China ; National Youth Talent Support Program of China
DOI	10.1364/OL.44.000614
关键词[WOS]	TIME TRANSFER ; OPTICAL CLOCKS ; FREQUENCY ; COHERENCE
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[61875205] ; National Natural Science Foundation of China (NSFC)[11273024] ; National Natural Science Foundation of China (NSFC)[91836301] ; National Natural Science Foundation of China (NSFC)[61025023] ; Major Research Plan[2017YFA0304000] ; Chinese Academy of Sciences (CAS)[QYZDB-SSW-JSC013] ; Chinese Academy of Sciences (CAS)[QYZDB-SSW-SLH007] ; National Youth Talent Support Program of China[[2013]33]
资助者	National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Major Research Plan ; Major Research Plan ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Youth Talent Support Program of China ; National Youth Talent Support Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Major Research Plan ; Major Research Plan ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Youth Talent Support Program of China ; National Youth Talent Support Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Major Research Plan ; Major Research Plan ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Youth Talent Support Program of China ; National Youth Talent Support Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Major Research Plan ; Major Research Plan ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Youth Talent Support Program of China ; National Youth Talent Support Program of China
WOS研究方向	Optics
WOS类目	Optics
WOS记录号	WOS:000457292400038
出版者	OPTICAL SOC AMER
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/11795
专题	中国科学院国家授时中心
通讯作者	Dong, Ruifang
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Time & Frequency Primary Stand, Xian 710600, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Superconducting Elect, Shanghai 200050, Peoples R China
推荐引用方式 GB/T 7714	Quan, Runai,Dong, Ruifang,Zhai, Yiwei,et al. Simulation and realization of a second-order quantum-interference-based quantum clock synchronization at the femtosecond level[J]. OPTICS LETTERS,2019,44(3):614-617.
APA	Quan, Runai.,Dong, Ruifang.,Zhai, Yiwei.,Hou, Feiyan.,Xiang, Xiao.,...&Zhang, Shougang.(2019).Simulation and realization of a second-order quantum-interference-based quantum clock synchronization at the femtosecond level.OPTICS LETTERS,44(3),614-617.
MLA	Quan, Runai,et al."Simulation and realization of a second-order quantum-interference-based quantum clock synchronization at the femtosecond level".OPTICS LETTERS 44.3(2019):614-617.