Perfect photons feed new quantum processor

https://phys.org/news/2022-02-photons-quantum-processor.html

"The photons move through the channels, with many channel splitters. These 'switches' can be geered from the outside, by local heating... photon can be sent from one mode to another, but also somewhere in between, following the typical quantum phenomenon of superposition... works at room temperature, like the photons... quantum bits are more robust and less noisy than superconducting qubits. Measurements at the 12 outputs show what has happened in all channels along the way"