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Quantum physics

Count them all

Direct experimental evidence to resolve the conflict between classical and quantum physics has been a long-awaited goal. As the last loophole closes, it seems that quantum mechanics was right all along.

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Figure 1: Testing our quantum picture of the world.

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Correspondence to Philippe Grangier.

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Grangier, P. Count them all. Nature 409, 774–775 (2001). https://doi.org/10.1038/35057415

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