Literature DB >> 22181861

Quantum correlations require multipartite information principles.

Rodrigo Gallego1, Lars Erik Würflinger, Antonio Acín, Miguel Navascués.   

Abstract

Identifying which correlations among distant observers are possible within our current description of nature, based on quantum mechanics, is a fundamental problem in physics. Recently, information concepts have been proposed as the key ingredient to characterize the set of quantum correlations. Novel information principles, such as information causality or nontrivial communication complexity, have been introduced in this context and successfully applied to some concrete scenarios. We show in this work a fundamental limitation of this approach: no principle based on bipartite information concepts is able to singleout the set of quantum correlations for an arbitrary number of parties. Our results reflect the intricate structure of quantum correlations and imply that new and intrinsically multipartite information concepts are needed for their full understanding.

Year:  2011        PMID: 22181861     DOI: 10.1103/PhysRevLett.107.210403

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN: 0031-9007            Impact factor:   9.161


  2 in total

1.  Observers of quantum systems cannot agree to disagree.

Authors:  Patricia Contreras-Tejada; Giannicola Scarpa; Aleksander M Kubicki; Adam Brandenburger; Pierfrancesco La Mura
Journal:  Nat Commun       Date:  2021-12-02       Impact factor: 14.919

2.  Information causality in the quantum and post-quantum regime.

Authors:  Martin Ringbauer; Alessandro Fedrizzi; Dominic W Berry; Andrew G White
Journal:  Sci Rep       Date:  2014-11-07       Impact factor: 4.379

  2 in total

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