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First multi-node quantum network paves the way for the quantum internet

April 16, 2021

First multi-node quantum network paves the way for the quantum internet

QuTech, a quantum research institute based in Delft, has published new work in which three nodes that can store and process quantum bits (also called qubits) were linked. In effect, the researchers have so far ‘only’ connected single, separate qubits, rather than quantum processors. Through this link, often optical fiber, qubits can be created, entangled and then distributed between two separate quantum devices. “The main advantage of this demonstration is that we have a scalable way of linking multiple nodes into a network,” Ronald Hanson, who led the research team, tells ZDNet. For example, the quantum internet could link together small quantum devices to create a large quantum cluster with more compute power than the most sophisticated classical supercomputers. A middle node, called Bob, has a physical connection to two outer nodes, called Alice and Charlie. “The future quantum internet will consist of countless quantum devices and intermediate nodes,” says Hanson. ‘

Article from ZDNet.