中国物理B ›› 2017, Vol. 26 ›› Issue (11): 110302-110302.doi: 10.1088/1674-1056/26/11/110302

• GENERAL • 上一篇    下一篇

Simple and practical method of characterizing the parametric down-conversion source

Dong Wang(王东), Juan Wu(伍娟), Liang-Yuan Zhao(赵良圆), Xue-Bi An(安雪碧), Zhen-Qiang Yin(银振强), Wei Chen(陈巍), Zheng-Fu Han(韩正甫), Qin Wang(王琴)   

  1. 1. Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China;
    2. Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei 230026, China;
    3. Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • 收稿日期:2017-03-20 修回日期:2017-07-23 出版日期:2017-11-05 发布日期:2017-11-05
  • 基金资助:
    Project supported by the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) (Grant Nos. XDB01030100 and XDB01030300), the National Key Research and Development Program of China (Grant No. 2016YFA0302600), and the National Natural Science Foundation of China (Grant Nos. 61475148 and 61575183).

Simple and practical method of characterizing the parametric down-conversion source

Dong Wang(王东)1,2, Juan Wu(伍娟)1,2, Liang-Yuan Zhao(赵良圆)1,2, Xue-Bi An(安雪碧)1,2, Zhen-Qiang Yin(银振强)1,2, Wei Chen(陈巍)1,2, Zheng-Fu Han(韩正甫)1,2, Qin Wang(王琴)3   

  1. 1. Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China;
    2. Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei 230026, China;
    3. Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2017-03-20 Revised:2017-07-23 Online:2017-11-05 Published:2017-11-05
  • Contact: Zhen-Qiang Yin, Wei Chen, Zheng-Fu Han, Qin Wang E-mail:yinzheqi@mail.ustc.edu.cn;weich@ustc.edu.cn;zfhan@ustc.edu.cn;qinw@njut.edu.cn
  • Supported by:
    Project supported by the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) (Grant Nos. XDB01030100 and XDB01030300), the National Key Research and Development Program of China (Grant No. 2016YFA0302600), and the National Natural Science Foundation of China (Grant Nos. 61475148 and 61575183).

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摘要： Parametric down-conversion (PDC) sources play an important role in quantum information processing, therefore characterizing their properties is necessary. Here we present a statistical model to assess the properties of the PDC source with certain distribution, such as the brightness and photon channel transmissions, we only need to measure the singles and coincidences counts in a few seconds. Furthermore, we validate the model by applying it to a PDC source generating highly non-degenerate photon pairs. The results of the experiment indicate that our method is more simple, efficient, and less time consuming.

关键词: parametric down-conversion, brightness, photon channel transmission

Abstract: Parametric down-conversion (PDC) sources play an important role in quantum information processing, therefore characterizing their properties is necessary. Here we present a statistical model to assess the properties of the PDC source with certain distribution, such as the brightness and photon channel transmissions, we only need to measure the singles and coincidences counts in a few seconds. Furthermore, we validate the model by applying it to a PDC source generating highly non-degenerate photon pairs. The results of the experiment indicate that our method is more simple, efficient, and less time consuming.

Key words: parametric down-conversion, brightness, photon channel transmission

中图分类号:  (Quantum information)

  • 03.67.-a
42.50.-p (Quantum optics) 03.67.Hk (Quantum communication) 03.67.Dd (Quantum cryptography and communication security)