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

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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 languageEnglish
Article number17122
JournalScientific Reports
Publication statusPublished - 07 Dec 2017

ASJC Scopus subject areas

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    Ciampini, M. A., Vigliar, C., Cimini, V., Paesani, S., Sciarrino, F., Crespi, A., Corrielli, G., Osellame, R., Mataloni, P., Paternostro, M., & Barbieri, M. (2017). Experimental nonlocality-based network diagnostics of multipartite entangled states. Scientific Reports, 7, [17122]. https://doi.org/10.1038/s41598-017-17457-0