A quantum logic network for implementing optimal symmetric universal and phase-covariant telecloning of a bipartite entangled state

作者:Meng Fanyu*; Zhu Aidong
来源:Journal of Physics B: Atomic, Molecular and Optical Physics , 2008, 41(20): 205502.
DOI:10.1088/0953-4075/41/20/205502

摘要

A quantum logic network to implement quantum telecloning is presented in this paper. The network includes two parts: the first part is used to create the telecloning channel and the second part to teleport the state. It can be used not only to implement universal telecloning for a bipartite entangled state which is completely unknown, but also to implement the phase-covariant telecloning for one that is partially known. Furthermore, the network can also be used to construct a tele-triplicator. It can easily be implemented in experiment because only single- and two-qubit operations are used in the network.