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Single-photon exchange confirmed over record-breaking distance of 20,000 km

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Category: Science News Archive (2019)

The practical transmission of single photons over a record-breaking distance of 20,000 km has been demonstrated between satellites in Earth orbit and a ground station in Italy. This was achieved by researchers led by Paolo Villoresi at the University of Padua, who say that the exchange confirms that satellite quantum communications are feasible on a global scale.

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