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Frequency entanglement characterization of short-pulse pumped SPDC biphoton source with a Mach-Zehnder interferometer

文献类型：期刊论文

作者Zhai, Yiwei1,2; Dong, Ruifang1,3; Li, Baihong1,4; Quan, Runai1,2; Wang, Mengmeng1,2; Hou, Feiyan1,2; Liu, Tao1,3; Zhang, Shougang1,3
刊名JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
出版日期2017-06-28
卷号50期号:12页码:8
关键词temporal measurement degree of frequency entanglement spectral indistinguishability Mach-Zehnder interferometer
ISSN号0953-4075
DOI10.1088/1361-6455/aa5a1c
英文摘要Frequency entangled biphoton sources have played an important role in quantum information. There are two key characteristics which determine the extent of their applications: the spectral indistinguishability and the degree of frequency entanglement. Previously, the spectral indistinguishability of the biphoton state is measured by the Hong-Ou-Mandel (HOM) interference visibility, whereas the degree of frequency entanglement is normally characterized with independent spectral measurements. However, these two quantum features have not been successfully measured with a single experimental setup. In this paper, we deduce the temporal distribution of a short-pulse pumped type-II spontaneous parametric down converted (SPDC) biphoton source and its relevant temporal entanglement parameter Rt for operationally quantifying the degree of frequency entanglement. Furthermore, we theoretically and experimentally demonstrate, due to the inherent group delay, the difference between the signal and idler photons at the exit of the type-II nonlinear crystal, resulting in a HOM-shape dip at both sides of the center fringed envelope of the MZ interferometric coincidence diagram. By measuring the HOM-shape dip depth, the separation between the two sideband dips as well as the MZ fringed envelope width, both the spectral indistinguishability and the temporal entanglement parameter can thus be simultaneously quantified. This implementation provides us a unified and convenient method to characterize the frequency entanglement of the short-pulse pumped biphotons.
WOS关键词CLOCK SYNCHRONIZATION ; QUANTUM ; PHOTONS
资助项目National Natural Science Foundation of China[91336108] ; National Natural Science Foundation of China[11273024] ; National Natural Science Foundation of China[91636101] ; National Natural Science Foundation of China[Y133ZK1101] ; Research Equipment Development Project of Chinese Academy of Sciences ; 'Young Top-notch Talents' Program of Organization Department of the CPC Central Committee[[2013] 33] ; Frontier Science Key Research Project of Chinese Academy of Sciences[QYZDB-SSWSLH007] ; Natural Science Basic Research Plan in Shaanxi Province of China[2016JQ1036]
WOS研究方向Optics ; Physics
语种英语
WOS记录号WOS:000402423200002
出版者IOP PUBLISHING LTD
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Equipment Development Project of Chinese Academy of Sciences ; Research Equipment Development Project of Chinese Academy of Sciences ; 'Young Top-notch Talents' Program of Organization Department of the CPC Central Committee ; 'Young Top-notch Talents' Program of Organization Department of the CPC Central Committee ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Natural Science Basic Research Plan in Shaanxi Province of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Equipment Development Project of Chinese Academy of Sciences ; Research Equipment Development Project of Chinese Academy of Sciences ; 'Young Top-notch Talents' Program of Organization Department of the CPC Central Committee ; 'Young Top-notch Talents' Program of Organization Department of the CPC Central Committee ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Natural Science Basic Research Plan in Shaanxi Province of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Equipment Development Project of Chinese Academy of Sciences ; Research Equipment Development Project of Chinese Academy of Sciences ; 'Young Top-notch Talents' Program of Organization Department of the CPC Central Committee ; 'Young Top-notch Talents' Program of Organization Department of the CPC Central Committee ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Natural Science Basic Research Plan in Shaanxi Province of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Equipment Development Project of Chinese Academy of Sciences ; Research Equipment Development Project of Chinese Academy of Sciences ; 'Young Top-notch Talents' Program of Organization Department of the CPC Central Committee ; 'Young Top-notch Talents' Program of Organization Department of the CPC Central Committee ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Natural Science Basic Research Plan in Shaanxi Province of China ; Natural Science Basic Research Plan in Shaanxi Province of China
源URL[http://210.72.145.45/handle/361003/11400]  
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, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
4.Xian Univ Sci & Technol, Coll Sci, Xian 710054, Peoples R China
推荐引用方式
GB/T 7714		 Zhai, Yiwei,Dong, Ruifang,Li, Baihong,et al. Frequency entanglement characterization of short-pulse pumped SPDC biphoton source with a Mach-Zehnder interferometer[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,2017,50(12):8.
APA Zhai, Yiwei.,Dong, Ruifang.,Li, Baihong.,Quan, Runai.,Wang, Mengmeng.,...&Zhang, Shougang.(2017).Frequency entanglement characterization of short-pulse pumped SPDC biphoton source with a Mach-Zehnder interferometer.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,50(12),8.
MLA Zhai, Yiwei,et al."Frequency entanglement characterization of short-pulse pumped SPDC biphoton source with a Mach-Zehnder interferometer".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 50.12(2017):8.

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