SCHEME FOR IMPLEMENTING ASSISTED CLONING OF AN UNKNOWN BIPARTITE D-DIMENSION EQUATORIAL ENTANGLED STATE
PENG-CHENG MA, You-Bang Zhan, Lingling Zhang · International Journal of Quantum Information · 2008
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.