Wayne, M.
, Bienfang, J.
, Levine, Z.
and Migdall, A.
(2018),
A post-processing-free single-photon random number generator with ultra-low latency., Optics Express, [online], https://doi.org/10.1364/OE.26.032788
(Accessed July 5, 2025)
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A post-processing-free single-photon random number generator with ultra-low latency.
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Abstract
The low-latency requirements of a practical loophole-free Bell test preclude 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 post-processing-free RNG that produces a random bit within 2.4(2) ns of an input trigger. We use weak feedback to eliminate long-term drift, resulting in 24 hour operation with output that is statistically indistinguishable from a Bernoulli process. We quantify the impact of the feedback on the predictability of the output as less than 2x10-7 and demonstrate the utility of the Allan variance as a tool for characterizing non-idealities in RNGs.Citation
Optics Express
Volume
26
Issue
25
Pub Type
Journals
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Keywords
random number generation, quantum information, single-photon
Citation
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Created December 10, 2018