English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Quantum mechanics is not the unique no-signaling theory which is endowed withstronger-than-classical correlations, and there exists a broad class ofno-signaling theories allowing even stronger-than-quantum correlations. Theprinciple of information causality has been suggested to distinguish quantumtheory from these nonphysical theories, together with an elegantinformation-theoretic proof of the quantum bound of two-particle correlations.In this work, we extend this to genuine $N$-particle correlations that cannotbe reduced to mixtures of states in which a smaller number of particles areentangled. We first express Svetlichny's inequality in terms of multipartiteno-signaling boxes, then prove that the strongest genuine multipartitecorrelations lead to the maximal violation of information causality. Themaximal genuine multipartite correlations under the constraint of informationcausality is found to be equal to the quantum mechanical bound. This resultconsolidates information causality as a physical principle defining thepossible correlations allowed by nature, and provides intriguing insights intothe limits of genuine multipartite correlations in quantum theory.

Bound on genuine multipartite correlations from the principle of information causality