Experimental demonstration of counterfactual quantum key distribution

M. Ren; G. Wu; E. Wu; H. Zeng

doi:10.1134/S1054660X11070267

Experimental demonstration of counterfactual quantum key distribution

M. Ren^*
, G. Wu
, E. Wu
, H. Zeng

^*Corresponding author for this work

East China Normal University

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

Counterfactual quantum key distribution provides natural advantage against the eavesdropping on the actual signal particles. It can prevent the photon-number-splitting attack when a weak coherent light source is used for the practical implementation. We experimentally realized the counterfactual quantum key distribution in an unbalanced Mach-Zehnder interferometer of 12.5-km-long quantum channel with a high-fringe visibility of 97.4%. According to the security analysis, the system was robust against the photon-number-splitting attack. The article is published in the original.

Original language	English
Pages (from-to)	755-760
Number of pages	6
Journal	Laser Physics
Volume	21
Issue number	4
DOIs	https://doi.org/10.1134/S1054660X11070267
State	Published - Apr 2011
Externally published	Yes

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abstract = "Counterfactual quantum key distribution provides natural advantage against the eavesdropping on the actual signal particles. It can prevent the photon-number-splitting attack when a weak coherent light source is used for the practical implementation. We experimentally realized the counterfactual quantum key distribution in an unbalanced Mach-Zehnder interferometer of 12.5-km-long quantum channel with a high-fringe visibility of 97.4\%. According to the security analysis, the system was robust against the photon-number-splitting attack. The article is published in the original.",

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AB - Counterfactual quantum key distribution provides natural advantage against the eavesdropping on the actual signal particles. It can prevent the photon-number-splitting attack when a weak coherent light source is used for the practical implementation. We experimentally realized the counterfactual quantum key distribution in an unbalanced Mach-Zehnder interferometer of 12.5-km-long quantum channel with a high-fringe visibility of 97.4%. According to the security analysis, the system was robust against the photon-number-splitting attack. The article is published in the original.

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Experimental demonstration of counterfactual quantum key distribution

Abstract

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