QKD QED? Singtel, NUS claim quantum encryption breakthrough

In the case of QKD, two parties attempting to communicate securely generate an encryption key using a pattern of entangled photons. ITEM: Researchers at the National University of Singapore (NUS) and Singtel say they have figured out a better way of enabling quantum key distribution (QKD) over a standard optical network by making sure quantum-entangled photons stay synchronized during transmission. The point about specialized hardware is one reason why researchers are focusing on getting QKD to work on existing optical networks. For a start, QKD demos so far have typically been point-to-point scenarios requiring highly specialized equipment (including the optical cables). As a case in point, the NUS-Singtel team only managed a transmission distance of 10 km on Singtel’s network.

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