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  Implementation of continuous-variable quantum key distribution with composable and one-sided-device-independent security against coherent attacks

Gehring, T., Händchen, V., Duhme, J., Furrer, F., Franz, T., Pacher, C., et al. (2015). Implementation of continuous-variable quantum key distribution with composable and one-sided-device-independent security against coherent attacks. Nature Communications, 6: 8795. doi:10.1038/ncomms9795.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-0B1E-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-9ABC-D
Genre: Journal Article
Other : Implementation of Quantum Key Distribution with Composable Security Against Coherent Attacks using Einstein-Podolsky-Rosen Entanglement

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 Creators:
Gehring, Tobias1, Author
Händchen, Vitus1, Author              
Duhme, Jörg, Author
Furrer, Fabian, Author
Franz, Torsten, Author
Pacher, Christoph, Author
Werner, Reinhard F., Author
Schnabel, Roman, Author
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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Free keywords: Quantum Physics, quant-ph
 Abstract: Secret communication over public channels is one of the central pillars of a modern information society. Using quantum key distribution (QKD) this is achieved without relying on the hardness of mathematical problems which might be compromised by improved algorithms or by future quantum computers. State-of-the-art QKD requires composable security against coherent attacks for a finite number of samples. Here, we present the first implementation of QKD satisfying this requirement and additionally achieving security which is independent of any possible flaws in the implementation of the receiver. By distributing strongly Einstein-Podolsky-Rosen entangled continuous variable (CV) light in a table-top arrangement, we generated secret keys using a highly efficient error reconciliation algorithm. Since CV encoding is compatible with conventional optical communication technology, we consider our work to be a major promotion for commercialized QKD providing composable security against the most general channel attacks.

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 Dates: 2014-06-242015-02-102015
 Publication Status: Published in print
 Pages: 7 pages, 3 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1406.6174
DOI: 10.1038/ncomms9795
URI: http://arxiv.org/abs/1406.6174
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Title: Nature Communications
Source Genre: Journal
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Pages: - Volume / Issue: 6 Sequence Number: 8795 Start / End Page: - Identifier: -