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Entangled Photons Maintained Under New York Streets
A new scheme sends large numbers of entangled photons reliably through commercial fiber-optic cables, demonstrating a capability required for secure quantum networks.
A new scheme sends large numbers of entangled photons reliably through commercial fiber-optic cables, demonstrating a capability required for secure quantum networks. Entangled photons have previously been distributed between distant parties using commercial fiber optics and have even been sent to and from an orbiting spacecraft (see Viewpoint: Paving the Way for Satellite Quantum Communications). There are no previous similar efforts with which to compare these results, but the duration, hands-free nature, and uptime of Qunnect’s demonstration impressed Michal Hajdušek, who studies quantum networks and their architectures at Keio University in Japan.
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