We present a real-time and fully integrated quantum random number generator (QRNG) by measuring laser phase fluctuations. The QRNG scheme based on laser phase fluctuations is featured for its capability of generating ultra-high-speed random numbers. However, the speed bottleneck of a practical QRNG lies on the limited speed of randomness extraction. To close the gap between the fast randomness generation and the slow post-processing, we propose a pipeline extraction algorithm based on Toeplitz matrix hashing and implement it in a high-speed field-programmable gate array. Further, all the QRNG components are integrated into a module, including a compact and actively stabilized interferometer, high-speed data acquisition, and real-time data post-processing and transmission. The final generation rate of the QRNG module with real-time extraction can reach 3.2 Gbps.
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July 2016
Brief Report|
July 11 2016
Note: Fully integrated 3.2 Gbps quantum random number generator with real-time extraction
Xiao-Guang Zhang;
Xiao-Guang Zhang
1Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics,
University of Science and Technology of China
, Hefei, Anhui 230026, China
2CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics,
University of Science and Technology of China
, Hefei, Anhui 230026, China
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You-Qi Nie
;
You-Qi Nie
1Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics,
University of Science and Technology of China
, Hefei, Anhui 230026, China
2CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics,
University of Science and Technology of China
, Hefei, Anhui 230026, China
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Hongyi Zhou;
Hongyi Zhou
3Center for Quantum Information, Institute for Interdisciplinary Information Sciences,
Tsinghua University
, Beijing 100084, China
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Hao Liang;
Hao Liang
1Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics,
University of Science and Technology of China
, Hefei, Anhui 230026, China
2CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics,
University of Science and Technology of China
, Hefei, Anhui 230026, China
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Xiongfeng Ma;
Xiongfeng Ma
3Center for Quantum Information, Institute for Interdisciplinary Information Sciences,
Tsinghua University
, Beijing 100084, China
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Jun Zhang;
Jun Zhang
a)
1Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics,
University of Science and Technology of China
, Hefei, Anhui 230026, China
2CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics,
University of Science and Technology of China
, Hefei, Anhui 230026, China
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Jian-Wei Pan
Jian-Wei Pan
1Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics,
University of Science and Technology of China
, Hefei, Anhui 230026, China
2CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics,
University of Science and Technology of China
, Hefei, Anhui 230026, China
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a)
Electronic mail: zhangjun@ustc.edu.cn
Rev. Sci. Instrum. 87, 076102 (2016)
Article history
Received:
March 24 2016
Accepted:
June 29 2016
Citation
Xiao-Guang Zhang, You-Qi Nie, Hongyi Zhou, Hao Liang, Xiongfeng Ma, Jun Zhang, Jian-Wei Pan; Note: Fully integrated 3.2 Gbps quantum random number generator with real-time extraction. Rev. Sci. Instrum. 1 July 2016; 87 (7): 076102. https://doi.org/10.1063/1.4958663
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