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QUANTUM MECHANICS

An inconsistent friend

A Publisher Correction to this article was published on 12 October 2018

This article has been updated

Are there limits to the applicability of textbook quantum theory? Experiments haven’t found any yet, but a new theoretical analysis shows that treating your colleagues as quantum systems might be a step too far.

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Fig. 1: A friend in superposition.

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  • 12 October 2018

    In the version of this News & Views originally published, the link for ref. 7 was incorrectly given as https://arxiv.org/abs/1604.07422; it should have been https://scirate.com/arxiv/1604.07422. This has now been corrected.

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Correspondence to Matthew F. Pusey.

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Pusey, M.F. An inconsistent friend. Nature Phys 14, 977–978 (2018). https://doi.org/10.1038/s41567-018-0293-7

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