Continuous variable payload transmitter for the SPOQC mission

Abstract:The continuous variable (CV) quantum key distribution (QKD) scheme enables two parties to share a secret key separated by a certain distance. Here we propose, design, build, test and show results of a CV payload transmitter, intended to demonstrate downlink based QKD from a CubeSat in low earth orbit. This is part of the SPOQC mission by Quantum Communications Hub, UK which was successfully launched on March 2026.

arXiv:2611.07861 [quant-ph]

(or arXiv:2611.07861v1 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2611.07861 Focus to learn more arXiv-issued DOI via DataCite (pending registration)

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