2006/06/30 by Ivan Marcikic, Antia Lamas-Linares, Antía Lamas-Linares +1 · 1 citation
Computer Science · Physics and Astronomy · #Advanced Statistical Modeling Techniques #Quantum Information and Cryptography #Quantum Mechanics and Applications #quant-ph
paper · pdf · doi:10.1063/1.2348775
published as Appl. Phys. Lett. 89, 101122 (2006) · 3 pages, 2 figures, reviewed version, accepted in Applied Physics Letters
arxiv created 2006/08/03 · openalex publication_date 2006/09/04 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The authors report on a complete experimental implementation of a quantum key distribution protocol through a free-space link using polarization-entangled photon pairs from a compact parametric downconversion source. Over 10h of uninterrupted communication between sites 1.5km apart, they observe average key generation rates of 630∕s after error correction and privacy amplification. Their scheme requires no specific hardware channel for synchronization apart from a classical wireless link, and no explicit random number generator.