Polarization-momentum hyper-entangled two photon states |
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| Authors: | M Barbieri G Vallone F De Martini P Mataloni |
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| Institution: | (1) Dipartimento di Fisica dell’Universitá “La Sapienza” and Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia, Roma, 00185, Italy;(2) Dipartimento di Fisica Teorica dell’Università di Torino and INFN—sezione di Torino, Torino, 10100, Italy;(3) Present address: School of Physical Sciences, the University of Queensland, 4072 Brisbane, QLD, Australia |
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| Abstract: | We present a parametric source which allows the engineering of polarization-momentum hyperentangled 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.
The text was submitted by the authors in English. |
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