Teleportation on Berlin's commercial fibre

Reported by a company; not yet in a peer-reviewed journal.

Deutsche Telekom's T-Labs and Qunnect report a January 2026 trial on Telekom's Berlin network. Qubits from a weak coherent source were teleported locally, and the photon carrying the teleported state was then sent over a 30 km loop of commercial fibre alongside ordinary data traffic. The company factsheet cites fidelities above 90%, and up to 95% according to preliminary data, using Qunnect's commercial entanglement hardware.

Why it matters for teleportation

• Tests teleportation equipment on a working telecom network rather than in a lab.
• Coexisting with normal traffic matters if operators are to add quantum services to existing fibre.
• Caveat: industry factsheet with preliminary data, not peer reviewed; the teleportation step itself was local, with the 30 km covered by sending the output photon.