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Quantum physics has the answer to making better holograms


Once, holograms were just a scientific curiosity. But thanks to the rapid development of lasers, they have gradually moved center stage, appearing on the security imagery for credit cards and banknotes, in science fiction movies – most memorably Star Wars – and even “live” on stage when long-dead rapper Tupac reincarnated for fans at the Coachella music festival in 2012. Holography is the photographic process of recording light that is scattered by an object and presenting it in a three-dimensional way. Invented in the early 1950s by the Hungarian-British physicist Dennis Gabor, the discovery later earned him the Nobel Prize…

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