Vacuum-based quantum random number generator using multi-mode coherent states

We present an optical quantum random number generator based on vacuum fluctuation measurements that uses multi-mode coherent states generated by electro-optical phase modulation of an intense optical carrier. In this approach the weak coherent multi-mode state (or a vacuum state) interferes with the...

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Bibliographic Details
Published inarXiv.org
Main Authors Samsonov, E O, Pervushin, B E, Ivanova, A E, Santev, A A, Egorov, V I, Kynev, S M, Gleim, A V
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 14.04.2020
Subjects
Coherence
Numbers
Phase modulation
Physics - Quantum Physics
Random numbers
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Summary:We present an optical quantum random number generator based on vacuum fluctuation measurements that uses multi-mode coherent states generated by electro-optical phase modulation of an intense optical carrier. In this approach the weak coherent multi-mode state (or a vacuum state) interferes with the carrier, which acts as a local oscillator, on each side mode independently. The proposed setup can effectively compensate for deviations between the two arms of a balanced detector by controlling the modulation index of the electro-optical phase modulator. We perform a proof-of-principle experiment and demonstrate random number generation with a possibility of real-time randomness extraction at the rate of 400 Mbit/s.
ISSN:2331-8422
DOI:10.48550/arxiv.2004.06552