Demonstration of quantum synchronization based on second-order quantum coherence of entangled photons
文献类型：期刊论文
| 作者 | Quan, Runai1,2; Zhai, Yiwei1,2; Wang, Mengmeng1,2; Hou, Feiyan1,2; Wang, Shaofeng1,2; Xiang, Xiao1,2; Liu, Tao1; Zhang, Shougang1; Dong, Ruifang1 |
| 刊名 | Scientific reports
 |
| 出版日期 | 2016-07-25 |
| 卷号 | 6页码:8 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/srep30453 |
| 通讯作者 | Dong, ruifang(dongruifang@ntsc.ac.cn) |
| 英文摘要 | Based on the second-order quantum interference between frequency entangled photons that are generated by parametric down conversion, a quantum strategic algorithm for synchronizing two spatially separated clocks has been recently presented. in the reference frame of a hong-ou-mandel (hom) interferometer, photon correlations are used to define simultaneous events. once the hom interferometer is balanced by use of an adjustable optical delay in one arm, arrival times of simultaneously generated photons are recorded by each clock. the clock offset is determined by correlation measurement of the recorded arrival times. utilizing this algorithm, we demonstrate a proof-of-principle experiment for synchronizing two clocks separated by 4 km fiber link. a minimum timing stability of 0.44 ps at averaging time of 16000 s is achieved with an absolute time accuracy of 73.2 ps. the timing stability is verified to be limited by the correlation measurement device and ideally can be better than 10 fs. such results shine a light to the application of quantum clock synchronization in the real high-accuracy timing system. |
| WOS关键词 | CLOCK SYNCHRONIZATION ; TIME TRANSFER ; FREQUENCY TRANSFER ; ATOMIC CLOCKS ; FIBER LINK ; ACCURACY ; DISTANCE ; RELATIVITY ; RESOLUTION ; STANDARDS |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000380191900001 |
| 出版者 | NATURE PUBLISHING GROUP |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374543 |
| 专题 | 中国科学院大学 |
| 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, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Quan, Runai,Zhai, Yiwei,Wang, Mengmeng,et al. Demonstration of quantum synchronization based on second-order quantum coherence of entangled photons[J]. Scientific reports,2016,6:8. |
| APA | Quan, Runai.,Zhai, Yiwei.,Wang, Mengmeng.,Hou, Feiyan.,Wang, Shaofeng.,...&Dong, Ruifang.(2016).Demonstration of quantum synchronization based on second-order quantum coherence of entangled photons.Scientific reports,6,8. |
| MLA | Quan, Runai,et al."Demonstration of quantum synchronization based on second-order quantum coherence of entangled photons".Scientific reports 6(2016):8. |
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来源：中国科学院大学
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