Realization and characterization of a 2-photon 4-qubit linear cluster state

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dc.creatorVallone, Giuseppe
dc.creatorPomarico, Enrico
dc.creatorMataloni, Paolo
dc.creatorDe Martini, Francesco
dc.creatorBerardi, Vincenzo
dc.date2007-03-21
dc.date.accessioned2026-07-07T10:15:30Z
dc.date.available2026-07-07T10:15:30Z
dc.descriptionWe report on the experimental realization of a 4-qubit linear cluster state via two photons entangled both in polarization and linear momentum. This state was investigated by performing tomographic measurements and by evaluating an entanglement witness. By use of this state we carried out a novel nonlocality proof, the so-called ``stronger two observer all versus nothing'' test of quantum nonlocality.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0703191
dc.identifierhttp://arxiv.org/abs/quant-ph/0703191
dc.identifierPhys. Rev. Lett. 98, 180502 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.180502
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/173191
dc.subjectQuantum Physics
dc.titleRealization and characterization of a 2-photon 4-qubit linear cluster state
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