Experimental linear-optics simulation of multipartite non-locality in the ground state of a quantum Ising ring

Critical phenomena involve structural changes in the correlations of its constituents. Such changes can be reproduced and characterized in quantum simulators able to tackle medium-to-large-size systems. We demonstrate these concepts by engineering the ground state of a three-spin Ising ring by using...

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Bibliographic Details
Published in:Scientific reports 2014-11, Vol.4 (1), p.7184-7184, Article 7184
Main Authors: Orieux, Adeline, Boutari, Joelle, Barbieri, Marco, Paternostro, Mauro, Mataloni, Paolo
Format: Article
Language:English
Subjects:
639/766/400/3925
639/766/483/3926
Critical phenomena
Helium
Humanities and Social Sciences
Magnetic fields
multidisciplinary
Optics
Photons
Science
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Summary:Critical phenomena involve structural changes in the correlations of its constituents. Such changes can be reproduced and characterized in quantum simulators able to tackle medium-to-large-size systems. We demonstrate these concepts by engineering the ground state of a three-spin Ising ring by using a pair of entangled photons. The effect of a simulated magnetic field, leading to a critical modification of the correlations within the ring, is analysed by studying two- and three-spin entanglement. In particular, we connect the violation of a multipartite Bell inequality with the amount of tripartite entanglement in our ring.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep07184