What gives quantum computers that extra oomph over their classical digital counterparts? An intrinsic, measurable aspect of quantum mechanics called contextuality, it now emerges. See Article p.351
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Bartlett, S. Powered by magic. Nature 510, 345–347 (2014). https://doi.org/10.1038/nature13504
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DOI: https://doi.org/10.1038/nature13504