Related papers: Genuine network quantum nonlocality and self-testing

Genuine network quantum nonlocality and self-testing

URL: http://arxiv.org/abs/2105.12341v1
Date: Wed, 26 May 2021 06:05:22 GMT
Title: Genuine network quantum nonlocality and self-testing
Authors: Ivan \v{S}upi\'c, Jean-Daniel Bancal, Yu Cai, Nicolas Brunner
Abstract summary: We define a notion of genuine network quantum nonlocality. We show several examples of correlations that are genuine network nonlocal. In particular, we present an example of quantum self-testing which relies on the network structure.
Score: 0.0
License: http://creativecommons.org/licenses/by/4.0/
Abstract: 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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