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Scientific article
Open access
English

Self-testing quantum random-number generator based on an energy bound

Published inPhysical Review. A, vol. 100, 062338
Publication date2019
Abstract

We introduce a scheme for a self-testing quantum random-number generator and demonstrate it experimentally. Compared to the fully device-independent model, our scheme requires an extra natural assumption, namely, that the mean number of photons of the signal optical modes is bounded. The scheme is self-testing, as it allows the user to verify in real time the correct functioning of the setup, hence guaranteeing the continuous generation of certified random bits. The scheme is based on a prepare-and-measure setup, which we implement in a proof-of-principle experiment using only off-the-shelf optical components. The randomness generation rate is 1.25 Mbits/s, comparable to commercial solutions. Overall, we believe that this scheme achieves a promising trade-off between the required assumptions, ease of implementation and performance.

eng
Keywords
  • Quantum Random Numbers Generator
  • Quantum Information
  • Self Testing
  • Semi Device Independent
Research group
Funding
  • Swiss National Science Foundation - Bridge project “Self-testing QRNG
  • European Commission - Quantum Communications for ALL [675662]
Citation (ISO format)
RUSCA, Davide et al. Self-testing quantum random-number generator based on an energy bound. In: Physical Review. A, 2019, vol. 100, p. 062338. doi: 10.1103/PhysRevA.100.062338
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Article (Published version)
accessLevelPublic
Identifiers
ISSN of the journal1050-2947
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Technical informations

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