Biphotons as three-level systems: Transformation and measurementстатья
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Аннотация:Two algorithms for measuring the polarization state of the biphoton field prepared in the form of a three-level system (qutrit) are considered. On the basis of the general approach developed by Klyshko [21] for describing the polarization properties of single-mode electromagnetic fields in the fourth order in the field, a procedure for measuring the polarization density matrix of qutrits is proposed and implemented. (C) 2003 MAIK "Nauka/Interperiodica".