Symmetry Entanglement in Polarization Optics: Grounds and Some Operational Measures
Abstract:We discuss the symmetry role for forming entangled states in polarization optics. The local and global polarization SU2-symmetries of quantum light fields are shown to determine kinematic and dynamic sorts of entanglement. The kinematic entanglement is associated with particular polarization bases in the spaces of quantum states of multi-mode radiation, which are generated by the global SU2-symmetry. Dynamic entanglement is due to SU2symmetries of the Hamiltonians of the matter-radiation interaction. We also define some new entanglement measures which have an operational meaning related to characteristics of light depolarization. Applications of results obtained in biphoton optics are briefly discussed.
Document Type: Research Article
Publication date: December 1, 2009
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