This prism splits the light into pairs of photons with strangely linked behaviour. (newscientist.com)
This technique allowed the researchers to surpass the limitations in current detectors and measure entangled pairs of photons with a resolution below one trillionth of a second. (sciencedaily.com)
On December 15, the LHC's two largest particle detectors, called ATLAS and CMS, both reported an unexpected excess of pairs of photons with a combined energy of 750 gigaelectronvolts (GeV). (scientificamerican.com)