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December 18, 2020 07:00 am

A Successful Experiment Gets Us One Step Closer To a Quantum Internet

Earlier this week, a team of researchers announced that they successfully teleported qubits of photons across approximately 27 miles of fiber-optic cable. Engadget reports: While other scientists have worked on similar projects, this group is the first to beam quantum information across such a great distance. What's more, they did so across two separate networks and with a fidelity greater than 90 percent. One of the researchers on the team told Motherboard they built the networks using "off-the-shelf" components, and that their tech is compatible with existing telecommunications equipment. In PRX Quantum, where the team published its findings, they say their work provides "a realistic foundation for a high-fidelity quantum Internet with practical devices." They added, "this is a key achievement on the way to building a technology that will redefine how we conduct global communication." Experts believe a quantum internet could revolutionize a variety of computing fields, including cryptography and search. [...] With two 13-mile networks under their belts, the Caltech and Fermilab teams plan to build a city-scale network called the Illinois Express Quantum Network in Chicago next.

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