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Instagram Filters for Robots & Optical Neural Networks | Julie Chang | TEDxBeaconStreet Scientists have developed a quantum algorithm to accurately measure physical quantities with help simple optical instruments. The sensitivity of measuring instruments is of decisive importance in various fields of science and technology. Previously, no instrument has been able to provide accuracy above the shot noise limit due to natural system fluctuations. However, recent experiments have shown that by combining sophisticated optical noise schemes and the principles of quantum mechanics, the Heisenberg limit of sensitivity can be reached.. Now researchers from the Moscow Institute of Physics and Technology, together with a colleague from the Argonne National Laboratory, have developed and constructed an optical circuit that triggers phase estimation methods based on the Fourier transform.. For this team, I arranged a large number of optical elements (beam splitters, phase shifters and mirrors) in a special way, and then, obtaining information about…

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