We present a parametric source which allows the engineering of polarization-momentum hyper-entangled two photon states based on linear optics and a single type-I nonlinear crystal. The nonlocal character of these states has been verified by various tests, including, the "All Versus Nothing" test of local realism [A. Cabello, Phys. Rev. Lett. 87, 010403 (2001)], which represents a generalization of the GHZ to the case of two entangled particles and two observers. We have also created a complete and deterministic Bell-state measurement by a novel experimental scheme which adopts polarization-momentum hyper-entanglement and requires linear optics and single photon detectors.
Polarization-momentum hyper-entangled two photon states / M., Barbieri; Vallone, Giuseppe; DE MARTINI, Francesco; Mataloni, Paolo. - In: OPTICS AND SPECTROSCOPY. - ISSN 0030-400X. - 103:1(2007), pp. 129-136. [10.1134/s0030400x0707020x]
Polarization-momentum hyper-entangled two photon states
VALLONE, GIUSEPPE;DE MARTINI, Francesco;MATALONI, Paolo
2007
Abstract
We present a parametric source which allows the engineering of polarization-momentum hyper-entangled two photon states based on linear optics and a single type-I nonlinear crystal. The nonlocal character of these states has been verified by various tests, including, the "All Versus Nothing" test of local realism [A. Cabello, Phys. Rev. Lett. 87, 010403 (2001)], which represents a generalization of the GHZ to the case of two entangled particles and two observers. We have also created a complete and deterministic Bell-state measurement by a novel experimental scheme which adopts polarization-momentum hyper-entanglement and requires linear optics and single photon detectors.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
