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A massive test

Although quantum mechanics is essential to understand microscopic systems, it has little effect on heavier objects. Experiments have now put strict constraints on theories that use gravity to explain the absence of large-scale quantum effects.

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Fig. 1: Schrödinger’s cat in a gravitational field.


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Correspondence to M. S. Kim.

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Kim, M.S. A massive test. Nat. Phys. 17, 14–15 (2021).

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