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Nonclassically causal correlations without backwards-in-time signaling

Research output: Contribution to journalArticle

Original languageEnglish
Article number022101
Number of pages9
JournalPhysical Review A
Volume99
Issue number2
Early online date4 Feb 2019
DOIs
DateAccepted/In press - 17 Jan 2019
DateE-pub ahead of print - 4 Feb 2019
DatePublished (current) - Feb 2019

Abstract

We investigate the relationship between no backwards in time signalling and classically causal correlations. We discover that unlike the case for two parties, the no backwards in time signaling paradigm for three parties is not enough to ensure that correlations can be reproduced with a classical causal ordering. We demonstrate this with an explicit example. We also generalise some existing results for linear two-time states to multi-party scenarios.

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  • Full-text PDF (author accepted manuscript)

    Rights statement: This is the author accepted manuscript (AAM). The final published version (version of record) is available online via APS at https://journals.aps.org/pra/abstract/10.1103/PhysRevA.99.022101 . Please refer to any applicable terms of use of the publisher.

    Accepted author manuscript, 322 KB, PDF document

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