“Teleporting quantum information is now a practical reality,” asserts Deutsche Telekom. The firm’s T‑Labs used commercially available Qunnect hardware to demo quantum teleportation over 30km of live, commercial Berlin fiber, running alongside classical internet traffic. In an email to 3DTested, Deutsche Telekom’s PR folks said that Cisco also ran the same hardware and demo process to connect data centers in NYC.
The demos
Last month, T-Labs completed the first practical test of the core components required for a future quantum internet, which would work by teleporting data. Central to the demo was Qunnect’s Carina platform, which integrates an entanglement generator, producing pairs of quantum-entangled photons for distribution over telecom fiber.
The experiment saw the recreation of an identical quantum particle at the destination “using pre-shared quantum entanglement rather than transmitting a physical particle,” explains Deutsche Telecom.
“Our fiber optic network is quantum ready,” said Abdu Mudesir, Telekom Board Member for Product and Technology. “In Berlin we have now proven that quantum information can be transmitted over 30 kilometers of commercial Telekom fiberoptics outside of a laboratory. “
There are a few wrinkles still to iron out, though. The official PR notes that the average accuracy of the teleported data is 90%. Deutsche Telecom and Qunnect also want to network quantum computers over longer distances, more locations, and multi-node teleportation configurations.
Still, it is pleasing that this milestone has been reached, with the building blocks of teleportation already operating across a real network. The teleportation wavelength used was 795nm, which is said to be a sweet spot for integration with platforms such as neutral-atom quantum computers, atomic clocks, and various quantum sensors.
A milestone
This milestone achievement shifts quantum communications from an experimental lab technology towards something telecoms providers can deploy. Key implications are expected in distributed quantum computing, quantum-secure communication, quantum sensor networks, and cloud-based quantum services.
As per the intro, Cisco used the same hardware from Qunnect to run a similar demo in NYC. We last reported on Cisco’s quantum internet efforts back in November last year, when it announced plans to jointly build a distributed quantum computing network capable of linking fault-tolerant systems over long distances, with the help of IBM.
Experts from Deutsche Telekom, Qunnect, and Technical University Dresden will be available for discussion at MWC Barcelona, on March 03 from 15:30 – 16:00 (CET). Deutsche Telekom will also have a ‘Quantum Teleportation’ showcase at its booth.
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