title: Free-space quantum key distribution to a moving receiver.
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.
authors.forename: Jean-Philippe
authors.initials: JP
authors.lastname: Bourgoin
authors.forename: Brendon L
authors.initials: BL
authors.lastname: Higgins
authors.forename: Nikolay
authors.initials: N
authors.lastname: Gigov
authors.forename: Catherine
authors.initials: C
authors.lastname: Holloway
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Pugh
authors.forename: Sarah
authors.initials: S
authors.lastname: Kaiser
authors.forename: Miles
authors.initials: M
authors.lastname: Cranmer
authors.forename: Thomas
authors.initials: T
authors.lastname: Jennewein