par Branciard, Cyril;Rosset, Denis;Gisin, Nicolas;Pironio, Stefano 
Référence Physical review. A, Atomic, Molecular, and Optical Physics, 85, 3, 032119
Publication Publié, 2012-03
Référence Physical review. A, Atomic, Molecular, and Optical Physics, 85, 3, 032119
Publication Publié, 2012-03
Article révisé par les pairs
| Résumé : | Entanglement swapping is a process by which two initially independent quantum systems can become entangled and generate nonlocal correlations. To characterize such correlations, we compare them to those predicted by bilocal models, where systems that are initially independent are described by uncorrelated states. We extend in this paper the analysis of bilocal correlations initiated in. In particular, we derive new Bell-type inequalities based on the bilocality assumption in different scenarios, we study their possible quantum violations, and we analyze their resistance to experimental imperfections. The bilocality assumption, being stronger than Bell's standard local causality assumption, lowers the requirements for the demonstration of quantumness in entanglement-swapping experiments. © 2012 American Physical Society. |
