Experimental nonlocality-based network diagnostics of multipartite entangled states

Mario A. Ciampini; Caterina Vigliar; Valeria Cimini; Stefano Paesani; Fabio Sciarrino; Andrea Crespi; Giacomo Corrielli; Roberto Osellame; Paolo Mataloni; Mauro Paternostro; Marco Barbieri

doi:10.1038/s41598-017-17457-0

Experimental nonlocality-based network diagnostics of multipartite entangled states

Mario A. Ciampini^*, Caterina Vigliar, Valeria Cimini, Stefano Paesani, Fabio Sciarrino, Andrea Crespi, Giacomo Corrielli, Roberto Osellame, Paolo Mataloni, Mauro Paternostro, Marco Barbieri

^*Corresponding author for this work

School of Mathematics and Physics

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Abstract

We introduce a novel diagnostic scheme for multipartite networks of entangled particles, aimed at assessing the quality of the gates used for the engineering of their state. Using the information gathered from a set of suitably chosen multiparticle Bell tests, we identify conditions bounding the quality of the entangled bonds among the elements of a register. We illustrate the effectiveness of our proposal by characterizing a quantum resource engineered combining two-photon hyperentanglement and photonic-chip technology. Our approach opens up future studies on medium-sized networks due to the intrinsically modular nature of cluster states, and paves the way to section-by-section analysis of larger photonics resources.

Original language	English
Article number	17122
Journal	Scientific Reports
Volume	7
DOIs	https://doi.org/10.1038/s41598-017-17457-0
Publication status	Published - 07 Dec 2017

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10.1038/s41598-017-17457-0Licence: CC BY

Experimental nonlocality-based network diagnostics of multipartite entangled states
Copyright 2017 the authors. This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
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Cite this

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abstract = "We introduce a novel diagnostic scheme for multipartite networks of entangled particles, aimed at assessing the quality of the gates used for the engineering of their state. Using the information gathered from a set of suitably chosen multiparticle Bell tests, we identify conditions bounding the quality of the entangled bonds among the elements of a register. We illustrate the effectiveness of our proposal by characterizing a quantum resource engineered combining two-photon hyperentanglement and photonic-chip technology. Our approach opens up future studies on medium-sized networks due to the intrinsically modular nature of cluster states, and paves the way to section-by-section analysis of larger photonics resources.",

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AU - Ciampini, Mario A.

AU - Vigliar, Caterina

AU - Cimini, Valeria

AU - Paesani, Stefano

AU - Sciarrino, Fabio

AU - Crespi, Andrea

AU - Corrielli, Giacomo

AU - Osellame, Roberto

AU - Mataloni, Paolo

AU - Paternostro, Mauro

AU - Barbieri, Marco

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Experimental nonlocality-based network diagnostics of multipartite entangled states

Abstract

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