2019
DOI: 10.1364/ol.44.005566
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Parallel real-time quantum random number generator

Abstract: Quantum random number generation exploits inherent randomness of quantum mechanical processes and measurements. Real-time generation rate of quantum random numbers is usually limited by electronic bandwidth and data processing rates. Here we use a multiplexing scheme to create a fast real-time quantum random number generator based on continuous variable vacuum fluctuations. Multiple sideband frequency modes of a quantum vacuum state within a homodyne detection bandwidth are concurrently extracted as the random… Show more

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Cited by 33 publications
(21 citation statements)
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“…Therefore, the efficiency of QKD determines the practical efficiency of our protocol to some extent. To date, real-time quantum key generation has been realized with over Gbps speed and security guarantees [42], [43]. In this view, the presented can be realized in the near future.…”
Section: Message Basismentioning
confidence: 99%
“…Therefore, the efficiency of QKD determines the practical efficiency of our protocol to some extent. To date, real-time quantum key generation has been realized with over Gbps speed and security guarantees [42], [43]. In this view, the presented can be realized in the near future.…”
Section: Message Basismentioning
confidence: 99%
“…A significant challenge of stochastic computing approaches, however, is the generation of high-quality random numbers with a low energy budget. Stochastic sampling for implementing TRNG (True Random Number Generators) using analog properties of circuits and devices has been studied in literature in order to develop more secure as well as area-efficient circuits (Jiang et al, 2017 ; Sahay et al, 2017 ; Jerry et al, 2018 ; Qu et al, 2018 ; Guo et al, 2019 ; Park et al, 2019 ; Huang et al, 2020 ; Simion, 2020 ). However, in most cases a non-uniform distribution, i.e., normal or log-normal, has been observed.…”
Section: Introductionmentioning
confidence: 99%
“…Furthermore, achieving a high-performance integrated randomness platform is technically challenging, as considerations, such as the presence of dark currents, or the responsivity and the bandwidth of the photodetectors significantly impact the generation rates achievable [25]. Perhaps one of the most promising and well-researched implementations employs homodyne measurements of the fluctuations of a vacuum-state as its entropy source, with several recent high-rate generation schemes being proposed [26][27][28][29][30][31]. This approach offers high generation rates using a simpler setup than heterodyne-based QRNGs, can potentially be implemented with widely available technologies and shows high potential for on-chip integration due to the low number of components required.…”
Section: Introductionmentioning
confidence: 99%