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A viable quantum internet a network in which information stored in qubits is shared over long distances through entanglement would transform the fields of data storage, precision sensing and computing, ushering in a new era of communication. This month, scientists at Fermilab, a U.S. Department of Energy Office of Science national laboratory, and their partners took a significant step in the direction of realizing a quantum internet. In a paper published in PRX Quantum, the team presents for the first time a demonstration of a sustained, long-distance (44 kilometers of fiber) teleportation of qubits of photons (quanta of light) with fidelity greater than 90%. The qubits were teleported over a fiber-optic network using state-of-the-art single-photon detectors and off-the-shelf equipment.

United statesNorthwestern universityPanagiotis spentzourisFermilab deputyMaria spiropuluShang yi chenResearch joe lykkenPropulsion laboratoryIllinois express quantum networkIntelligent quantum networksUs department of energyHarvard universityCaltech quantum networkOffice of scienceUniversity of calgaryArgonne national laboratory