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arXiv · 1904.12990

Parallel real-time quantum random number generator

Xiaomin Guo·Chen Cheng·Mingchuan Wu·Qingzhong Gao·Pu Li·Yanqiang Guo
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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 randomness source. Parallel post-processing of raw data from three sub-entropy sources is realized in one field-programmable gate array (FPGA) based on Toeplitz-hashing extractors. A cumulative generation rate of 8.25 Gbps in real-time is achieved. The system relies on optoelectronic components and circuits that could be integrated in a compact, economical package.

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Xiaomin Guo, Chen Cheng, Mingchuan Wu, Qingzhong Gao, Pu Li, Yanqiang Guo. 2019-11-08. Parallel real-time quantum random number generator. https://doi.org/10.1364/ol.44.005566

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