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Modeling of a New Photonic Quantum Random Number Generation Method

Ágoston Schranz, Balázs Solymos, Miklós Telek

Published Feb 20, 2026• 0 citations
Publisher

Abstract

Abstract A bit generation algorithm of a photon arrival times based quantum random number generator is proposed and investigated in terms of the quality of generated bits, bit generation efficiency and bit generation rate. The method's performance is analyzed mathematically, considering the properties of the physical equipment, such as discretized time measurement, inaccurate knowledge about the photon arrival rate and dead time. The proposed bit generation algorithm is also tested in a physical experiment.

DOI
10.21203/rs.3.rs-8872860/v1

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The bit generation algorithm of a quantum random number generator based on photon arrival time differences is improved in terms of the bit generation efficiency and bit generation rate. The method is analyzed mathematically, proving that, in theory, the improved generator still produces random numbers of high quality without the need of resorting to postprocessing algorithms. The effects of nonidealities are quantitatively analyzed to provide bounds for the maximum tolerable deviations from uniformity. Experimental investigations are conducted on a prototype, showing that the method is capable of increasing the rate of bit generation by more than 47% on the same physical architecture.
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