Daylight quantum key distribution over 1.6 km
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🪐 quant-ph
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daylightdistributionquantumapplicationsatmosphericbeenbringscloser
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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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