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An on-demand optical quantum random number generator with in-future action and ultra-fast response

Stipčević, Mario; Ursin, Rupert (2015) An on-demand optical quantum random number generator with in-future action and ultra-fast response. Scientific Reports, 5 . 10214/1-10214/8. ISSN 2045-2322

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Random numbers are essential for our modern information based society e.g. in cryptography. Unlike frequently used pseudo-random generators, physical random number generators do not depend on complex algorithms but rather on a physical process to provide true randomness. Quantum random number generators (QRNG) do rely on a process, which can be described by a probabilistic theory only, even in principle. Here we present a conceptualy simple implementation, which offers a 100% efficiency of producing a random bit upon a request and simultaneously exhibits an ultra low latency. A careful technical and statistical analysis demonstrates its robustness against imperfections of the actual implemented technology and enables to quickly estimate randomness of very long sequences. Generated random numbers pass standard statistical tests without any post- processing. The setup described, as well as the theory presented here, demonstrate the maturity and overall understanding of the technology.

Item Type: Article
Uncontrolled Keywords: random numbers; Bell inequality; random number generation; laser; single-photon detector
Subjects: NATURAL SCIENCES > Physics
Divisions: Division of Experimental Physics
Project titleProject leaderProject codeProject type
Experimental techniques of quantum communication and quantum information (Eksperimentalne tehnike kvantne komunikacije i kvantne informacije)Mario Stipčević098-0352851-2873MZOS
Depositing User: Mario Stipčević
Date Deposited: 06 Jun 2016 12:49
DOI: 10.1038/srep10214

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