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/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

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

Zendy Tools

Zendy Open

Principle of information causality, proposed as a generalization of nosignaling principle, has efficiently been applied to outcast beyond quantumcorrelations as unphysical. In this letter we show that this principle whenutilized properly can provide physical rationale towards structural derivationof multipartite quantum systems. In accordance with no signaling conditionstate and effect spaces of a composite system can allow different possiblemathematical descriptions even when description for the individual systems areassumed to be quantum. While in one extreme, namely the maximal tensor productcomposition, the state space becomes quite exotic and permits composite statesthat are not allowed in quantum theory, the other extreme -- minimal tensorproduct composition -- contains only separable states and the resulting theoryallows only Bell local correlation. As we show, none of these compositions doescommensurate with information causality, and hence get invalidated to be thebona-fide description of nature. Information causality, therefore, promisesinformation theoretic derivation of self-duality of state and effect cones forcomposite quantum systems.

Principle of information causality rationalizes quantum composition