Quantum random number generation with down converted photon pairs

Vasile-Laurențiu Dosan; Mona Mihăilescu; Nicolae Tarbă; Mihaela-Andreea Ungureanu; Radu Ionicioiu

doi:10.1117/12.2570954

31 December 2020 Quantum random number generation with down converted photon pairs

Vasile-Laurențiu Dosan, Mona Mihăilescu, Nicolae Tarbă, Mihaela-Andreea Ungureanu, Radu Ionicioiu

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Proceedings Volume 11718, Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X; 117180S (2020) https://doi.org/10.1117/12.2570954
Event: Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies 2020, 2020, Online Only

Abstract

Random numbers play a significant role in fields like scientific simulations and cryptography. Here we describe a physical random number generator based on the intrinsic randomness of quantum mechanics. We design a simple method to produce and analyze random sequences starting with a source of correlated/entangled photon pairs as an entropy source. We generate random bits from the coincidence rates of photon pairs in 3 steps: (i) generate correlated/entangled photon pairs, (ii) convert the coincidence rates from decimal to binary, (iii) apply a randomness extraction procedure (post-processing). In this approach, we have tested the influence of entanglement on the entire generation process. In order to obtain a good-quality random sequance, we have used and compared two different extractors in the post-processing step.

Citation Download Citation

Vasile-Laurențiu Dosan, Mona Mihăilescu, Nicolae Tarbă, Mihaela-Andreea Ungureanu, and Radu Ionicioiu "Quantum random number generation with down converted photon pairs", Proc. SPIE 11718, Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X, 117180S (31 December 2020); https://doi.org/10.1117/12.2570954

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