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Cited by 918

The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.

No Signaling and Quantum Key Distribution

Open access
Barrett, Jonathan, Hardy, Lucien, Kent, Adrian·2005·Physical Review Letters

Abstract

Standard quantum key distribution protocols are provably secure against eavesdropping attacks, if quantum theory is correct. It is theoretically interesting to know if we need to assume the validity of quantum theory to prove the security of quantum key distribution, or whether its security can be based on other physical principles. The question would also be of practical interest if quantum mechanics were ever to fail in some regime, because a scientifically and technologically advanced eavesdropper could perhaps use postquantum physics to extract information from quantum communications without necessarily causing the quantum state disturbances on which existing security proofs rely. Here we describe a key distribution scheme provably secure against general attacks by a postquantum eavesdropper limited only by the impossibility of superluminal signaling. Its security stems from violation of a Bell inequality.

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Metadata

Authors
Barrett, J., Hardy, L., & Kent, A.
Venue
Physical Review Letters
Published
2005-06-27
Volume
95
Issue
1
Pages
010503-010503
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W1986293140
Cited by
918
References
6
FWCI
12.71
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: No Signaling and Quantum Key Distribution. https://app.cochat.ai/papers/10.1103/physrevlett.95.010503
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Barrett, J., Hardy, L., & Kent, A. (2005). No Signaling and Quantum Key Distribution. Physical Review Letters. https://doi.org/10.1103/physrevlett.95.010503

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.