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Silicon photonics light the way toward large-scale applications in quantum information - EurekAlert
A device to efficiently generate frequency-bin entangled photon pairs in a spiral-shaped microresonator was demonstrated by researchers from the Centre for Nanosciences and Nanotechnology (C2N), Telecom Paris, and STMicroelectronics (STM). They showed that broadband frequency-entangled state generation is suitable to weave a quantum network. Demultiplexing these frequency qubits enables secure quantum information distribution in a 5-user trusted-node-free quantum network, which is unprecedented with frequency-encoded qubits. Their work, published in Advanced Photonics, highlights how frequency-bin can be leveraged for large-scale applications in quantum information.
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