Generation of hybrid polarization-orbital angular momentum entangled states.
Hybrid entangled states exhibit entanglement between different degrees of freedom of a particle pair and thus could be useful for asymmetric optical quantum network where the communication channels are characterized by different properties. We report the first experimental realization of hybrid polarization-orbital angular momentum (OAM) entangled states by adopting a spontaneous parametric down conversion source of polarization entangled states and a polarization-OAM transferrer. The generated quantum states have been characterized through quantum state tomography. Finally, the violation of Bell's inequalities with the hybrid two photon system has been observed.
Nagali
Eleonora
E
Dipartimento di Fisica, Sapienza Università di Roma, Roma 00185, Italy.
Sciarrino
Fabio
F
D001464:Barium / Q000737:chemistry; D001881:Borates / Q000737:chemistry; D003461:Crystallography / Q000295:instrumentation / Q000379:methods; D001330:Electronic Data Processing / Q000295:instrumentation / Q000379:methods*; D008962:Models, Theoretical; D055095:Optics and Photonics / Q000295:instrumentation / Q000379:methods*; D017785:Photons; D011789:Quantum Theory
D001881:Borates; D001464:Barium