Controlled Teleportation of an Arbitrary Two-Particle State by One EPR Pair and Cluster State
Zhan-Ying Guo, Xiao-Xing Shang, Fang Jian-Xing, Rui-Hua Xiao · Communications in Theoretical Physics · 2011
A scheme for controlled teleportation of an arbitrary two-particle state using a maximally entangled EPR pair and a cluster state as the quantum channel is proposed. After receiving Alice's Bell state measurement results, the controller performs a joint measurement on his particles under a non-maximally entangled Bell-basis. The receiver needs to introduce an auxiliary qubit, and performs a series of appropriate unitary transformations on his particles. The original state can be teleported successfully with the probability 2 cos2 θ.