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.

Item Type:	Article
Identification Number (DOI):	https://doi.org/10.1038/ncomms7288
Keywords:	Quantum mechanics, Theoretical physics
Departments, Centres and Research Units:	Computing
Dates:	Date Event 13 January 2015 Accepted 20 February 2015 Published
Item ID:	24442
Date Deposited:	01 Oct 2018 10:52
Last Modified:	03 Aug 2021 15:05
Peer Reviewed:	Yes, this version has been peer-reviewed.
URI:	https://research.gold.ac.uk/id/eprint/24442

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