No Bipartite-Nonlocal Causal Theory Can Explain Nature's Correlations

Coiteux-Roy, Xavier; Wolfe, Elie; Renou, Marc-Olivier

doi:10.48550/arxiv.2105.09381

Cited by 2 publications

(2 citation statements)

References 53 publications

(80 reference statements)

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“…It is worth pointing out that our approach is completely different from the one taken in a series of recent works [27][28][29][30]. The latter address a different question, namely they aim at characterizing multipartite quantum states (such as GHZ states) and their correlations which cannot be obtained from unbounded bipartite resources (quantum or even postquantum) distributed in a triangle network.…”

Section: Discussion and Outlookmentioning

confidence: 99%

Genuine network quantum nonlocality and self-testing

Šupić,

Bancal,

Cai

et al. 2021

Preprint

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The network structure offers in principle the possibility for novel forms of quantum nonlocal correlations, that are proper to networks and cannot be traced back to standard quantum Bell nonlocality. Here we define a notion of genuine network quantum nonlocality. Our approach is operational and views standard quantum nonlocality as a resource for producing correlations in networks. We show several examples of correlations that are genuine network nonlocal, considering the so-called bilocality network of entanglement swapping. In particular, we present an example of quantum self-testing which relies on the network structure; the considered correlations are non-bilocal, but are local according to the usual definition of Bell locality.

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Section: Discussion and Outlookmentioning

confidence: 99%

Genuine network quantum nonlocality and self-testing

Šupić,

Bancal,

Cai

et al. 2021

Preprint

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show abstract

“…This remarkable point of view can be exploited for new applications such as certification of entangled measurements [13,14], and detection of the nonlocality of all entangled states [15] which is out of reach in standard Bell scenarios [16]. At a conceptual level, Network Nonlocality was recently used to propose alternative definitions for genuine multipartite entanglement [17][18][19] and genuine multipartite nonlocality [20,21], and to understand the role of complex numbers in quantum theory [22].…”

Section: Introductionmentioning

confidence: 99%