A Bell test is performed on a Micro-Macroscopic photon system obtained by parametric amplification of a spin-1 entangled photon state. The optical parametric amplification leads to the creation of a Micro-Macroscopic entangled system consisting of N ≃ 3.5 × 104. The performed Bell's inequality non locality test involves the adoption of a positive operator valued measurement (POVM) strategy for a sharper identification of the amplified states. This is obtained through a local filtering technique and the experimental data are found to violate the Bell's inequality albeit with a loophole similar to the detection efficiency one in photon counting experiments. © 2009 American Institute of Physics.
Non locality in a micro-macroscopic photon system / Vitelli, Chiara; Spagnolo, Nicolò; Sciarrino, Fabio; Demartini, Francesco. - STAMPA. - 1101:(2009), pp. 29-36. (Intervento presentato al convegno International Conference Foundations of Probability and Physics-5 tenutosi a Vaxjo; Sweden nel 24 - 27 Aug 2008) [10.1063/1.3109953].
Non locality in a micro-macroscopic photon system
Vitelli, Chiara;Spagnolo, Nicolò;Sciarrino, Fabio;DeMartini, Francesco
2009
Abstract
A Bell test is performed on a Micro-Macroscopic photon system obtained by parametric amplification of a spin-1 entangled photon state. The optical parametric amplification leads to the creation of a Micro-Macroscopic entangled system consisting of N ≃ 3.5 × 104. The performed Bell's inequality non locality test involves the adoption of a positive operator valued measurement (POVM) strategy for a sharper identification of the amplified states. This is obtained through a local filtering technique and the experimental data are found to violate the Bell's inequality albeit with a loophole similar to the detection efficiency one in photon counting experiments. © 2009 American Institute of Physics.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
