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Cited by 1,858

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Unconditional Security of Quantum Key Distribution over Arbitrarily Long Distances

Open access
Lo, Hoi-Kwong, Chau, H. F.·1999·Science

Abstract

Quantum key distribution is widely thought to offer unconditional security in communication between two users. Unfortunately, a widely accepted proof of its security in the presence of source, device, and channel noises has been missing. This long-standing problem is solved here by showing that, given fault-tolerant quantum computers, quantum key distribution over an arbitrarily long distance of a realistic noisy channel can be made unconditionally secure. The proof is reduced from a noisy quantum scheme to a noiseless quantum scheme and then from a noiseless quantum scheme to a noiseless classical scheme, which can then be tackled by classical probability theory.

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Crossref · 10.1126/science.283.5410.2050

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Metadata

Authors
Lo, H.-K., & Chau, H. F.
Venue
Science
Published
1999-03-26
Volume
283
Issue
5410
Pages
2050-2056
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1970006170
Cited by
1,858
References
12
FWCI
37.43
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Unconditional Security of Quantum Key Distribution over Arbitrarily Long Distances. https://app.cochat.ai/papers/10.1126/science.283.5410.2050
The paper
Lo, H.-K., & Chau, H. F. (1999). Unconditional Security of Quantum Key Distribution over Arbitrarily Long Distances. Science. https://doi.org/10.1126/science.283.5410.2050

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.