Accelerating biexciton decay within optical cavity enables semiconductor quantum dots to emit 90% indistinguishable single photons

https://www.eurekalert.org/news-releases/1146201

"temporal correlation/ focus issues degrade light particle quality, overcome using 2-step excitation cascade systematically emitting sequential photons at push of button... integrating cavity boosts generated photons' indistinguishability from 60 up to 90%... prerequisite for: single-photon quantum logic, high-fidelity quantum interference, long-distance unhackable quantum communication networks/ repeaters, reliable quantum computing and unhackable communication networks"