Would be nice if the article, you know, explained the part that of the title. The only thing it mentions is:<p>>They used a type of microscope with two laser light sources, but sent one of the beams through a specially designed crystal that “squeezes” the light. It does so by introducing quantum correlations in the photons – the particles of light in the laser beam. The photons were coupled into correlated pairs, and any of them that had energies unlike the others were discarded instead of being paired off.<p>Which tells us nothing, and as someone who took both physics and quantum computing in university, infuriating. They used magic? Got it. Details, or you just made shit up. You're newscientist, do better.