Researchers control individual light quanta at very high speed

https://phys.org/news/2022-11-individual-quanta-high.html

"switch individual photons on chip back and forth between two outputs... gigahertz frequencies... acoustic quantum technologies or complex integrated photonic networks... minute conducting paths for light quanta... waveguides 30X thinner than hair... quantum light sources called quantum dots nanometers in size, islands inside waveguides emit individual photons... quantum dots included in chip... don't have to use complicated methods to generate individual photons by means of another source"

Related: A method to accurately center quantum dots within photonic chips

https://phys.org/news/2024-03-method-accurately-center-quantum-dots.html