Harnessing frequency dimension within integrated silicon photonics: large-scale applications in quantum information

https://phys.org/news/2024-07-silicon-photonics-large-scale-applications.html

"silicon ring resonators: scalable, noise resilience, footprint <0.05 mm2, generating >70 frequency channels spaced 21 GHz apart, enabling parallelization/ control of 34 single qubit-gates using just 3 standard electro-optic devices... generates readily manipulable frequency-bin entangled photon pairs... first fully connected 5-user quantum network in frequency domain... parallelization, and compatibility with existing telecom multiplexing techniques...  quantum computing, ultra-secure communications networks"