We present an experimental method to engineer polarization-momentum hyperentangled two-photon states, using linear optics and a single type-I nonlinear crystal. These states have been completely characterized and their nonlocal behavior has been verified by an "all versus nothing" test of local realism, which represents a generalization of the Greenberger-Horne-Zeilinger (GHZ) to the case of two entangled particles and two observers. The manipulation of these states may represent a useful control in quantum state engineering and Bell state measurements and, more in general, in quantum information applications.
Polarization-momentum hyperentangled states: Realization and characterization / Barbieri, Marco; C., Cinelli; DE MARTINI, Francesco; Mataloni, Paolo. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 72:5(2005), pp. 052110-052110-8. [10.1103/physreva.72.052110]
Polarization-momentum hyperentangled states: Realization and characterization
BARBIERI, MARCO;DE MARTINI, Francesco;MATALONI, Paolo
2005
Abstract
We present an experimental method to engineer polarization-momentum hyperentangled two-photon states, using linear optics and a single type-I nonlinear crystal. These states have been completely characterized and their nonlocal behavior has been verified by an "all versus nothing" test of local realism, which represents a generalization of the Greenberger-Horne-Zeilinger (GHZ) to the case of two entangled particles and two observers. The manipulation of these states may represent a useful control in quantum state engineering and Bell state measurements and, more in general, in quantum information applications.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
