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Perovskite Quantum Dots Deliver Coherent Single-Photon Emission

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CAMBRIDGE, Mass., Feb. 25, 2019 — In an advancement toward a single photon source for use in quantum computing and communications devices, researchers at the Massachusetts Institute of Technology (MIT) and ETH Zurich showed that individual perovskite quantum dots could be used as a source for individual photons with precisely known and consistent properties, including wavelength. Each photon produced would be indistinguishable from the others, allowing a pair of photons to interact in a phenomenon known as quantum interference. A scanning transmission electron microscope image (STEM) of single perovskite quantum dots. A...Read full article

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