Quantum Teleportation Achieved Over Commercial Fiber Networks

Deutsche Telekom's T-Labs, in collaboration with the quantum networking firm Qunnect, has successfully demonstrated quantum teleportation over a commercial fiber network in Berlin. This milestone marks a significant advancement in the practical application of quantum technologies, showcasing the ability to teleport quantum information over a distance of 30 kilometers while coexisting with classical internet traffic. The demonstration utilized Qunnect's Carina platform, which integrates an entanglement generator that produces pairs of quantum-entangled photons for distribution over existing telecom fiber.

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The trial, conducted in January 2026, achieved an average teleportation fidelity of 90%, with peak accuracy reaching 95%. This was accomplished by recreating an identical quantum state at the destination using pre-shared quantum entanglement, rather than transmitting a physical particle. Abdu Mudesir, Telekom Board Member for Product and Technology, emphasized that the fiber optic network is "quantum ready," indicating its capability to support future quantum internet applications.

Deutsche Telekom and Qunnect Successfully Test Quantum Teleportation Over Live Berlin NetworkQuantum teleportation demonstrated over existing fiber networks — Deutsche Telekom’s T-Labs used commercially available Qunnect hardware for the demo, claims 90% average accuracyT-Labs demos commercial viability of quantum networkingDT and Qunnect take steps toward quantum networking

The experiment involved teleporting qubits generated by a weak coherent source over a fiber loop connecting T-Lab’s Quantum Lab to a node on the Berlin fiber testbed. The technology demonstrated the potential for integrating quantum teleportation capabilities into operational networks, paving the way for future applications in distributed quantum computing, quantum-secure communication, and cloud-based quantum services.

Deutsche Telekom and Qunnect Successfully Test Quantum Teleportation Over Live Berlin NetworkT-Labs demos commercial viability of quantum networkingDT and Qunnect take steps toward quantum networkingQuantum teleportation demonstrated over existing fiber networks — Deutsche Telekom’s T-Labs used commercially available Qunnect hardware for the demo, claims 90% average accuracy

The successful demonstration is expected to have far-reaching implications for the development of quantum networks. It lays the groundwork for networking quantum computers over longer distances and pooling computing power across multiple locations. Mael Flament, Chief Technology Officer at Qunnect, noted that this achievement transitions quantum teleportation from a laboratory experiment to a deployable technology for telecommunications providers.

Deutsche Telekom and Qunnect Successfully Test Quantum Teleportation Over Live Berlin NetworkT-Labs demos commercial viability of quantum networkingQuantum teleportation demonstrated over existing fiber networks — Deutsche Telekom’s T-Labs used commercially available Qunnect hardware for the demo, claims 90% average accuracyDT and Qunnect take steps toward quantum networking

Experts anticipate that quantum teleportation will enable new applications, including quantum cryptography and secure cloud-based quantum services. The ongoing partnership between Deutsche Telekom and Qunnect aims to extend this demonstration to multi-node teleportation configurations, further evaluating broader deployment within metro-scale carrier network infrastructure.

Deutsche Telekom and Qunnect Successfully Test Quantum Teleportation Over Live Berlin NetworkT-Labs demos commercial viability of quantum networkingQuantum teleportation demonstrated over existing fiber networks — Deutsche Telekom’s T-Labs used commercially available Qunnect hardware for the demo, claims 90% average accuracyDT and Qunnect take steps toward quantum networking

While the demonstration represents a significant step forward, some experts caution that the commercial viability of quantum networking technologies is still in its infancy. Concerns remain regarding the scalability and security of quantum networks, particularly as quantum computing technology evolves. Qunnect's CEO, Noel Goddard, highlighted the importance of developing secure connections that are resilient against potential future hacking by quantum computers.

DT and Qunnect take steps toward quantum networkingQuantum teleportation demonstrated over existing fiber networks — Deutsche Telekom’s T-Labs used commercially available Qunnect hardware for the demo, claims 90% average accuracyDeutsche Telekom and Qunnect Successfully Test Quantum Teleportation Over Live Berlin NetworkT-Labs demos commercial viability of quantum networking

Deutsche Telekom will showcase its "Quantum Teleportation" capabilities at the Mobile World Congress (MWC) in Barcelona on March 3, 2026. Experts from Deutsche Telekom, Qunnect, and the Technical University of Dresden will discuss the implications of these advancements for telecom networks and quantum resources.

Deutsche Telekom and Qunnect Successfully Test Quantum Teleportation Over Live Berlin NetworkQuantum teleportation demonstrated over existing fiber networks — Deutsche Telekom’s T-Labs used commercially available Qunnect hardware for the demo, claims 90% average accuracyT-Labs demos commercial viability of quantum networkingDT and Qunnect take steps toward quantum networking

• “Teleportation is a novel tool for moving information around networks leveraging quantum physics,” — Mael Flament, Chief Technology Officer at Qunnect

Deutsche Telekom and Qunnect Successfully Test Quantum Teleportation Over Live Berlin Network

• “In Berlin we have now proven that quantum information can be transmitted over 30 kilometers of commercial Telekom fiber optics outside of a laboratory.” — Abdu Mudesir, Telekom Board Member for Product and Technology

Deutsche Telekom and Qunnect Successfully Test Quantum Teleportation Over Live Berlin Network

• “We are showing the building blocks of teleportation can operate inside a real network, in real racks, under operator control, advancing it from a laboratory experiment to something a telecommunications provider can deploy.” — Mael Flament, Chief Technology Officer at Qunnect

Deutsche Telekom and Qunnect Successfully Test Quantum Teleportation Over Live Berlin Network

This demonstration signifies a pivotal moment in the journey toward a functional quantum internet, with the potential to revolutionize telecommunications and secure communications in the future.

Deutsche Telekom and Qunnect Successfully Test Quantum Teleportation Over Live Berlin Network