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A post-processing-free single-photon random number generator with ultra-low latency
Author(s): Michael A. Wayne; Alan L. Migdall; Zachary H. Levine; Joshua C. Bienfang
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Paper Abstract

The low-latency requirements of a loophole-free Bell test prohibit time-consuming post-processing steps that are often used to improve the statistical quality of a physical random number generator (RNG). Here we demonstrate a postprocessing-free RNG that produces a random bit within 2.4(2) ns of an input trigger. We use the Allan variance as a tool for characterizing non-idealities in the RNG and designing a feedback mechanism to account for and correct long-term drift. The impact of the feedback on the predictability of the output is less than 6.4 × 107 , and results in a system capable of 24 hour operation with output that is statistically indistinguishable from a balanced Bernoulli process.

Paper Details

Date Published: 4 March 2019
PDF: 7 pages
Proc. SPIE 10933, Advances in Photonics of Quantum Computing, Memory, and Communication XII, 109330F (4 March 2019); doi: 10.1117/12.2514855
Show Author Affiliations
Michael A. Wayne, National Institute of Standards and Technology (United States)
Alan L. Migdall, National Institute of Standards and Technology (United States)
Univ. of Maryland (United States)
Zachary H. Levine, National Institute of Standards and Technology (United States)
Joshua C. Bienfang, National Institute of Standards and Technology (United States)
Univ. of Maryland (United States)


Published in SPIE Proceedings Vol. 10933:
Advances in Photonics of Quantum Computing, Memory, and Communication XII
Philip R. Hemmer; Alan L. Migdall; Zameer Ul Hasan, Editor(s)

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