Published in
IOP Publishing, New Journal of Physics, 2017
Nature Research, Scientific Reports, 1(7), 2017
DOI: 10.1038/s41598-017-17457-0
Links
- IOP Publishing | PDF
- Nature Research | PDF
- [arxiv.org] | PDF
- [research-information.bristol.ac.uk] | PDF
- [research-information.bristol.ac.uk] | PDF
- [pure.qub.ac.uk] | PDF
- [pure.qub.ac.uk] | PDF
- [europepmc.org] | PDF
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Experimental nonlocality-based network diagnostics of multipartite entangled states
,
Caterina Vigliar,
Valeria Cimini,
Stefano Paesani,
Fabio Sciarrino,
Andrea Crespi,
Giacomo Corrielli,
Roberto Osellame ,
Paolo Mataloni,
Mauro Paternostro,
Marco Barbieri
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Abstract
AbstractWe 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.