Fiber-optic two-way quantum time transfer with frequency-entangled pulses
Fiber-optic two-way quantum time transfer with frequency-entangled pulses
复制标题
具有频率纠缠脉冲的光纤双向量子时间传输
DOI:
10.1103/physreva.100.023849
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发表时间:
2018-12
影响因子:
2.9
通讯作者:
Zhang Shougang
中科院分区:
文献类型:
--
作者:
Hou Feiyan;Quan Runai;Dong Ruifang;Xiang Xiao;Li Baihong;Liu Tao;Yang Xiaoyan;Li Hao;You Lixing;Wang Zhen;Zhang Shougang
High-precision time transfer is of fundamental interest in physics and metrology. Quantum time transfer technologies with frequency entangled pulses have been proposed for its potential enhancement of the precision and guaranteed security by the complementarity principle in quantum mechanics. However, the superiority of quantum time transfer is previously underappreciated due to the relatively low photon rate and decoherence effect of optical loss. Here we demonstrate that, with the unique property of quantum nonlocal dispersion cancellation associated with frequency entangled pulses, quantum time transfer through a dispersive channel can appreciably outperform the analogous classical scheme. A quantum two-way time transfer over a 20 km-long fiber link is experimentally demonstrated with a time transfer accuracy of 1.23 ps and a time deviation of 922 fs at 5 s and 45 fs at 40960 s. The femtosecond-scale time transfer capability of this two-way quantum time transfer, together with its inherent secure advantage, will be applicable to high-precision middle-haul synchronization systems.
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影响因子:
64.8
作者:
Giovannetti, V;Lloyd, S;Maccone, L
通讯作者:
Maccone, L
影响因子:
4.6
作者:
Ning B;Zhang SY;Hou D;Wu JT;Li ZB;Zhao JY
通讯作者:
Zhao JY
DOI:
10.1063/1.5086493
发表时间:
2018-12
期刊:
2019 Conference on Lasers and Electro-Optics (CLEO)
影响因子:
--
作者:
Jianwei Lee;Lijiong Shen;A. Ceré;J. Troupe;A. Lamas-Linares;C. Kurtsiefer
通讯作者:
Jianwei Lee;Lijiong Shen;A. Ceré;J. Troupe;A. Lamas-Linares;C. Kurtsiefer
影响因子:
1.9
作者:
Wu Junjie;You Lixing;Chen Sijing;Li Hao;He Yuhao;Lv Chaolin;Wang Zhen;Xie Xiaoming
通讯作者:
Xie Xiaoming
影响因子:
4
作者:
M. Lessing;H. Margolis;C. Brown;G. Marra
通讯作者:
M. Lessing;H. Margolis;C. Brown;G. Marra