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Daylight quantum key distribution over 1.6 km

W. T. Buttler·R. J. Hughes·S. K. Lamoreaux·G. L. Morgan·J. E. Nordholt·C. G. Peterson
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Abstract

Quantum key distribution (QKD) has been demonstrated over a point-to-point $\sim1.6$-km atmospheric optical path in full daylight. This record transmission distance brings QKD a step closer to surface-to-satellite and other long-distance applications.

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W. T. Buttler, R. J. Hughes, S. K. Lamoreaux, G. L. Morgan, J. E. Nordholt, C. G. Peterson. 2000-01-25. Daylight quantum key distribution over 1.6 km. https://doi.org/10.1103/physrevlett.84.5652

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