DACH–Italy quantum teleportation breakthrough — high-fidelity demo between separate quantum dots
Key Questions
What quantum teleportation breakthrough was demonstrated?
A high-fidelity teleportation demo between separate quantum dots achieved 82% fidelity over 270 m involving Paderborn, Linz, Würzburg, and Rome.
What progress has been made in quantum-dot QKD?
Quantum Optics Jena demonstrated German QD-based QKD over 120 km, supporting longer-range secure quantum communication links.
How do these results relate to quantum-safe communications?
The work forms part of the race to deploy quantum-resistant systems, including sub-Poissonian photon sources that lower error rates in satellite QKD before quantum computers threaten current encryption.
82% fidelity 270m QDs (Paderborn/Linz/Würzburg/Rome); German QD QKD 120km (Quantum Optics Jena); Oxford gate teleportation; Tübingen; Silesian cavities; Deep Tech Awards; Warsaw reservoir. Map PIs/TTOs/EIC.
Sources (2)
Updated May 20, 2026