Almost quantum correlations

Navascués, Miguel; Guryanova, Yelena; Hoban, Matty J. and Acín, Antonio. 2015. Almost quantum correlations. Nature Communications, 6, 6288. ISSN 2041-1723 [Article]

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Abstract or Description

Quantum theory is not only successfully tested in laboratories every day but also constitutes a robust theoretical framework: small variations usually lead to implausible consequences, such as faster-than-light communication. It has even been argued that quantum theory may be special among possible theories. Here we report that, at the level of correlations among different systems, quantum theory is not so special. We define a set of correlations, dubbed ‘almost quantum’, and prove that it strictly contains the set of quantum correlations but satisfies all-but-one of the proposed principles to capture quantum correlations. We present numerical evidence that the remaining principle is satisfied too.

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Quantum mechanics, Theoretical physics

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13 January 2015Accepted
20 February 2015Published

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Date Deposited:

01 Oct 2018 10:52

Last Modified:

03 Aug 2021 15:05

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Yes, this version has been peer-reviewed.


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