Quantum Key Distribution Over a Channel with Scattering
نویسندگان
چکیده
Scattering of light by cloud, haze, and fog decreases the transmission efficiency communication channels in quantum key distribution (QKD), reduces system's practical security, thus constrains deployment free-space QKD. Here, we employ wavefront shaping technology to compensate distorted optical signals high-loss scattering fulfill a polarization-encoded BB84 QKD experiment. With this channel compensation technology, achieve typical enhancement about 250 improve secure rate from 0 $1.85\times10^{-6}$ per sifted key. The method its first time validation show great potential expand territory systems lossless highly scattered ones therefore enhances ability global network.
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ژورنال
عنوان ژورنال: Physical review applied
سال: 2022
ISSN: ['2331-7043', '2331-7019']
DOI: https://doi.org/10.1103/physrevapplied.17.034045