More than 40 years ago the first Bell tests translated a purely philosophical conundrum to a physical experiment. In doing so, they changed our understanding of quantum mechanics and contributed to the development of quantum technologies.
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Georgescu, I. How the Bell tests changed quantum physics. Nat Rev Phys 3, 674–676 (2021). https://doi.org/10.1038/s42254-021-00365-8
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