Abstract
A tripartite scheme for securely sharing an arbitrary unknown two-qutrit state is proposed, where two generalized Greenberger–Horne–Zeilinger (GHZ) states serve as the quantum channel linking the three legitimate parties. The quantum information (i.e., the arbitrary unknown two-qutrit state) from the sender can be split in such a way that it can be reconstructed deterministically by any agent via a proper unitary operation provided that both agents collaborates together. Moreover, the generalization of the tripartite scheme to more-party case is also outlined.
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