Free-space quantum key distribution to a moving receiver.
Opt Express
; 23(26): 33437-47, 2015 Dec 28.
Article
em En
| MEDLINE
| ID: mdl-26832008
ABSTRACT
Technological realities limit terrestrial quantum key distribution (QKD) to single-link distances of a few hundred kilometers. One promising avenue for global-scale quantum communication networks is to use low-Earth-orbit satellites. Here we report the first demonstration of QKD from a stationary transmitter to a receiver platform traveling at an angular speed equivalent to a 600 km altitude satellite, located on a moving truck. We overcome the challenges of actively correcting beam pointing, photon polarization and time-of-flight. Our system generates an asymptotic secure key at 40 bits/s.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2015
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Article