Quantum Random-number Generation and Key Sharing
Abstract
We review the status of interferometry-based quantum cryptography and compare photon-pair and faint-pulse schemes. The key technical limitations in both cases are the propagation losses and detector performance. We also discuss a simple approach to generating the random measurement bases used in quantum cryptography systems which exploits random partition at a beam splitter. This removes the need for active components in the receiver, reducing system complexity and losses.
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Rarity and collaborators proposed a physical quantum-mechanical random generator based on the 50:50 splitting of a beam of single photons.
“Rarity and collaborators (Rarity et al 1994) proposed a physical quantummechanical random generator based on the 50 : 50 splitting of a beam of single photons.”
From Single-photon sources (2005) · cites this paper as Rarity et al 1994
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References 18 · Cited by 232
- Authors
- Rarity, J. G., Owens, P. C. M., & Tapster, P. R.
- Venue
- Journal of Modern Optics
- Publisher
- Informa UK Limited
- Published
- 1994-12
- Volume
- 41
- Issue
- 12
- Pages
- 2435-2444
- ISSN
- 0950-0340 (ISSN-L)
- 1362-3044
- OpenAlex
- W2031585547
- Cited by
- 232
- References
- 18
- Citations by year
- 2025: 8 · 2024: 9 · 2023: 11 · 2022: 4 · 2021: 18 · 2020: 17 · 2019: 10 · 2018: 11 · 2017: 19 · 2016: 16 · 2015: 12 · 2014: 12 · 2013: 5 · 2012: 4
- FWCI
- 4.10
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Modern Optics (publishedVersion)
- Bristol Research (University of Bristol) (publishedVersion)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum optics and atomic interactions
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Semiconductor Quantum Structures and Devices
- Keywords
- quantum random number generation, quantum key distribution, photon pair sources, path loss, detector performance, receiver complexity
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