Researchers develop world's smallest quantum light detector on a silicon chip

https://phys.org/news/2024-05-world-smallest-quantum-detector-silicon.html

"making quantum technologies in existing commercial facilities... circuit size 80 X 220 µm... room temperature... increased speed 10X, reduced footprint by a factor of 50... key to measuring quantum light is sensitivity to quantum noise, revealing information about kind of quantum light, and how sensitive an optical sensor can be, and it can be used to mathematically reconstruct quantum states... sensing (gravitational wave detectors), high-speed: quantum communications and optical quantum computers"