New approach for space-borne quantum technologies brings global quantum networking closer
Researchers at Strathclyde Physics, together with collaborators at Humboldt University in Berlin, propose the use of single satellites equipped with long-duration quantum memories to shuttle entanglement across the world, facilitating the quantum internet. This work was performed as part of the , of which Strathclyde is a partner on the upcoming SPOQC CubeSat mission.
Daniel Oi (Strathclyde), who helped lead this work and is also Director of the EPSRC , said: 鈥淪atellites will provide crucial links in the global quantum internet. This new method greatly simplifies the logistics of creating quantum connections between widely spread locations.鈥�
The lead author of the study, Mustafa G眉ndo臒an from HU Berlin, adds: 鈥淚n this work, we combined two separate paradigms in quantum information science for the first time: quantum repeater behaviour and the physical transportation of qubits, which resulted in potential improvements by many orders of magnitude over existing protocols.鈥�
This research has been published in Optica Quantum:
Mustafa G眉ndo千an, Jasminder S. Sidhu, Markus Krutzik, and Daniel K. L. Oi, 鈥淭ime-delayed single satellite quantum repeater node for global quantum communications,鈥� Optica Quantum 2, 140-147 (2024)
May 2024