Three-photon polarization ququarts: polarization, entanglement and Schmidt decompositions
arXiv:1404.1496 · doi:10.1088/1054-660X/25/3/035204
Abstract
We consider polarization states of three photons, each in the same given spectral-angular mode. A general form of such states is a superposition of four basic three-photon polarization modes, to be referred to as three-photon polarization ququarts. All such states can be considered as consisting of one- and two-photon parts, which can be entangled with each other. The degrees of entanglement and polarization as well as the Schmidt decomposition and Stokes vectors of three-photon polarization ququarts are found and discussed.
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