Journal article
Certified quantum random numbers from untrusted light
- Abstract:
- A remarkable aspect of quantum theory is that certain measurement outcomes are entirely unpredictable to all possible observers. Such quantum events can be harnessed to generate numbers whose randomness is asserted based upon the underlying physical processes. We formally introduce, design and experimentally demonstrate an ultrafast optical quantum random number generator that uses a totally untrusted photonic source. While considering completely general quantum attacks, we certify and generate in real-time random numbers at a rate of 8.05 Gb/s with a rigorous security parameter of 10−10. Our security proof is entirely composable, thereby allowing the generated randomness to be utilised for arbitrary applications in cryptography and beyond. To our knowledge, this represents the fastest composably secure source of quantum random numbers ever reported.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, 1.0MB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevX.10.041048
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review X More from this journal
- Volume:
- 10
- Article number:
- 041048
- Publication date:
- 2020-12-09
- Acceptance date:
- 2020-09-21
- DOI:
- EISSN:
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2160-3308
- Language:
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English
- Keywords:
- Pubs id:
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1140670
- Local pid:
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pubs:1140670
- Deposit date:
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2020-11-06
Terms of use
- Copyright date:
- 2020
- Rights statement:
- Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
- Licence:
- CC Attribution (CC BY)
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