An On-Demand Optical Quantum Random Number Generator with In-Future Action and Ultra-Fast Response
Mario Stip\v{c}evi\'c, Rupert Ursin

TL;DR
This paper introduces a highly efficient, ultra-fast quantum random number generator that produces true random bits on demand with robust performance and passes all standard statistical tests, advancing practical quantum cryptography applications.
Contribution
It presents a simple, on-demand QRNG with 100% efficiency and ultra-low latency, demonstrating robustness and maturity of the technology.
Findings
Achieves 100% efficiency in generating random bits on request
Exhibits ultra-low latency suitable for real-time applications
Random numbers pass standard statistical tests without post-processing
Abstract
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 conceptually 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…
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