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arXiv · 1401.7111

Bright Integrated Photon-Pair Source for Practical Passive Decoy-State Quantum Key Distribution

Stephan Krapick·Michael Stefszky·Michal Jachura·Benjamin Brecht·Malte Avenhaus·Christine Silberhorn
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Abstract

We report on a bright, nondegenerate type-I parametric down-conversion source, which is well suited for passive decoy-state quantum key distribution. We show the photon-number-resolved analysis over a broad range of pump powers and we prove heralded higher-order $n$-photon states up to $n=4$. The inferred photon click statistics exhibit excellent agreements to the theoretical predictions. From our measurement results we conclude that our source meets the requirements to avert photon-number-splitting attacks.

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Stephan Krapick, Michael Stefszky, Michal Jachura, Benjamin Brecht, Malte Avenhaus, Christine Silberhorn. 2014-01-28. Bright Integrated Photon-Pair Source for Practical Passive Decoy-State Quantum Key Distribution. https://doi.org/10.1103/physreva.89.012329

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