中国物理B ›› 2016, Vol. 25 ›› Issue (5): 50304-050304.doi: 10.1088/1674-1056/25/5/050304

• GENERAL • 上一篇    下一篇

A hybrid-type quantum random number generator

Hai-Qiang Ma(马海强), Wu Zhu(朱武), Ke-Jin Wei(韦克金), Rui-Xue Li(李瑞雪), Hong-Wei Liu(刘宏伟)   

  1. School of Science and State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2015-11-04 修回日期:2016-01-10 出版日期:2016-05-05 发布日期:2016-05-05
  • 通讯作者: Hai-Qiang Ma E-mail:hqma@bupt.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61178010 and 11374042), the Fund of State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications), China, and the Fundamental Research Funds for the Central Universities of China (Grant No. bupt2014TS01).

A hybrid-type quantum random number generator

Hai-Qiang Ma(马海强), Wu Zhu(朱武), Ke-Jin Wei(韦克金), Rui-Xue Li(李瑞雪), Hong-Wei Liu(刘宏伟)   

  1. School of Science and State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2015-11-04 Revised:2016-01-10 Online:2016-05-05 Published:2016-05-05
  • Contact: Hai-Qiang Ma E-mail:hqma@bupt.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61178010 and 11374042), the Fund of State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications), China, and the Fundamental Research Funds for the Central Universities of China (Grant No. bupt2014TS01).

摘要: This paper proposes a well-performing hybrid-type truly quantum random number generator based on the time interval between two independent single-photon detection signals, which is practical and intuitive, and generates the initial random number sources from a combination of multiple existing random number sources. A time-to-amplitude converter and multichannel analyzer are used for qualitative analysis to demonstrate that each and every step is random. Furthermore, a carefully designed data acquisition system is used to obtain a high-quality random sequence. Our scheme is simple and proves that the random number bit rate can be dramatically increased to satisfy practical requirements.

关键词: true random number generator, single photon counting, time interval

Abstract: This paper proposes a well-performing hybrid-type truly quantum random number generator based on the time interval between two independent single-photon detection signals, which is practical and intuitive, and generates the initial random number sources from a combination of multiple existing random number sources. A time-to-amplitude converter and multichannel analyzer are used for qualitative analysis to demonstrate that each and every step is random. Furthermore, a carefully designed data acquisition system is used to obtain a high-quality random sequence. Our scheme is simple and proves that the random number bit rate can be dramatically increased to satisfy practical requirements.

Key words: true random number generator, single photon counting, time interval

中图分类号:  (Quantum cryptography and communication security)

  • 03.67.Dd
03.67.Hk (Quantum communication) 03.67.-a (Quantum information)