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Title: Quantum phases of a qutrit
Author: Klimov, Andrei B.
Sanchez-Soto, L.L.
De Guise, H.
Bjork, G.
Issue Date: 2004
Abstract: We consider various approaches to treat the phases of a qutrit. Although it is possible to represent qutrits in a convenient geometrical manner by resorting to a generalization of the Poincar� sphere, we argue that the appropriate way of dealing with this problem is through phase operators associated with the algebra su(3). The rather unusual properties of these phases are caused by the small dimension of the system and are explored in detail. We also examine the positive operator-valued measures that can describe the qutrit phase properties.
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