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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:A method of optical realization of a protocol of restoration of the density matrix of an unknown state of a three-level system that represents an arbitrary polarization state of a single-mode biphoton field is proposed. The method is applied to a set of pure states of qutrits, with this set being determined by the properties of SU(2) transformations performed by polarization transformers (retardation plates). (C) 2003 MAIK "Nauka/Interperiodica".