Abstract
Quantum key distribution (QKD) has been demonstrated over a point-to-point 1.6-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.
- Received 14 January 2000
DOI:https://doi.org/10.1103/PhysRevLett.84.5652
©2000 American Physical Society