University of Vienna Demonstrates First In-Orbit Operation of a Programmable Quantum Photonic Processor
A University of Vienna and VCQ team has operated a programmable quantum photonic processor aboard a nanosatellite in orbit. The system demonstrated two-photon quantum interference and programmable matrix operations. This marks a shift from spaceborne quantum communication to active on-board quantum processing at the edge.
If entangled photon sources can be integrated, this demonstration could allow nanosatellite constellations to perform on-orbit entanglement swapping and routing, reducing dependence on ground stations for secure key distribution.