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Scientific article
Open access
English

Genuine quantum nonlocality in the triangle network

Published inPhysical Review Letters, vol. 123, no. 140401
Publication date2019
Abstract

Quantum networks allow in principle for completely novel forms of quantum correlations. In particular, quantum nonlocality can be demonstrated here without the need of having various input settings, but only by considering the joint statistics of fixed local measurement outputs. However, previous examples of this intriguing phenomenon all appear to stem directly from the usual form of quantum nonlocality, namely via the violation of a standard Bell inequality. Here we present novel examples of 'quantum nonlocality without inputs', which we believe represent a new form of quantum nonlocality, genuine to networks. Our simplest examples, for the triangle network, involve both entangled states and joint entangled measurements. A generalization to any odd-cycle network is also presented. Finally, we conclude with some open questions.

Classification
  • arxiv : quant-ph
Note16 pages, 4 figures
Research group
Citation (ISO format)
RENOU, Marc-Olivier et al. Genuine quantum nonlocality in the triangle network. In: Physical Review Letters, 2019, vol. 123, n° 140401. doi: 10.1103/PhysRevLett.123.140401
Main files (1)
Article (Accepted version)
accessLevelPublic
Identifiers
ISSN of the journal0031-9007
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274downloads

Technical informations

Creation10/21/2019 10:50:00 AM
First validation10/21/2019 10:50:00 AM
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