Quantum random number generation with down converted photon pairs
Autor: | Radu Ionicioiu, Mona Mihailescu, Vasile-Laurențiu Dosan, Mihaela-Andreea Ungureanu, Nicolae Tarba |
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Rok vydání: | 2020 |
Předmět: | |
Zdroj: | Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X. |
DOI: | 10.1117/12.2570954 |
Popis: | 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. |
Databáze: | OpenAIRE |
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