A proposed new route to sharper imaging using quantum interference
https://phys.org/news/2025-05-route-sharper-imaging-quantum.html "improves distinguishing 2 closely spaced faint distant thermal light sources, by estimating small separations (transverse distance) between them... relatively simple quantum set-up extracts spatial information traditionally limited by Rayleigh Criterion resolution limitation rule... measures interference at beam splitter between photon emitted by either one and laboratory prepared reference photon... needs testing outside of ideal lab conditions... microscopy, astronomy, remote sensing."