Generation and characterization of Werner states and maximally entangled mixed states by a universal source of entanglement |
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Authors: | Barbieri M De Martini F Di Nepi G Mataloni P |
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Institution: | Dipartimento di Fisica and Istituto Nazionale per la Fisica della Materia, Università di Roma La Sapienza, 00185 Rome, Italy. |
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Abstract: | We present a novel technique for generating two-photon polarization mixed states of any structure, which is based on the peculiar spatial characteristics of a high brilliance source of entangled pairs. Werner states and maximally entangled mixed states, two well-known families of mixed states important for quantum information, have been created and fully characterized by this technique. We have also investigated and tested the nonlocal properties of these states. |
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