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Experimental demonstration of kilometer-range quantum digital signatures

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arxiv 1509.07827 v1 pith:4NWJPCXL submitted 2015-09-25 quant-ph

Ross James Donaldson , Robert John Collins , Klaudia Kleczkowska , Ryan Amiri , Petros Wallden , Vedran Dunjko , John Jeffers , Erika Andersson
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Gerald Stuart Buller
This is my paper · ORCID
classification quant-ph
keywords quantumdigitaldistributionexperimentalopticalprevioussignaturesignatures
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We present an experimental realization of a quantum digital signature protocol which, together with a standard quantum key distribution link, increases transmission distance to kilometre ranges, three orders of magnitude larger than in previous realizations. The bit-rate is also significantly increased compared with previous quantum signature demonstrations. This work illustrates that quantum digital signatures can be realized with optical components similar to those used for quantum key distribution, and could be implemented in existing optical fiber networks.

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