科研之友
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摘要
In this paper, we proposed a protocol which can produce a perfect copy of an unknown bipartite d-dimension equatorial entangled state with assistance from a state preparer. In this protocol, the maximally and non-maximally entangled bipartite d-dimension states are used as the quantum channels, respectively. The first stage of the protocol requires usual teleportation. In the second stage of the protocol, with the assistance (two-qudit projective measurement) of the preparer, the perfect copy of an original unknown state can be produced.
