A silicon microresonator (left, SEM image) provides a parametric broadband source for frequency-entangled photon pairs 21 GHz apart to achieve frequency-encoded large-scale quantum networks. (IMAGE)

SPIE--International Society for Optics and Photonics

A silicon microresonator (left, SEM image) provides a parametric broadband source for frequency-entangled photon pairs 21 GHz apart to achieve frequency-encoded large-scale quantum networks.

Caption

A silicon microresonator (left, SEM image) provides a parametric broadband source for frequency-entangled photon pairs 21 GHz apart to achieve frequency-encoded large-scale quantum networks. The result is a trusted-node-free, fully-connected network where users are linked by a two-qubit frequency-entangled state.

Credit

Henry et al., doi 10.1117/1.AP.6.3.036003.

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