Abstract
Several protocols for remote preparation of a single-quadbit state and a two-quadbit entangle state with real and complex coefficients are presented via positive operator-valued measure, respectively. In these protocols, two- and three-quadbit non-maximally entangled state(s) have been employed as the quantum channel respectively. To complete the protocols, several novel sets of single- and two-quadbit mutually orthogonal basis vectors are introduced. The advantage of the present protocols is that, if the quantum channel consists of maximally entangled state(s), all the considered RSP can be completed with unit successful probability.
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