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Experimental nonlocality-based network diagnostics of multipartite entangled states.

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.

SUBMITTER: Ciampini MA

PROVIDER: S-EPMC5719363 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature

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Experimental nonlocality-based network diagnostics of multipartite entangled states.

Ciampini Mario A MA Vigliar Caterina C Cimini Valeria V Paesani Stefano S Sciarrino Fabio F Crespi Andrea A Corrielli Giacomo G Osellame Roberto R Mataloni Paolo P Paternostro Mauro M Barbieri Marco M

Scientific reports 20171207 1

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 ...[more]

PMID: 29215056

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