A scheme for controlled teleportation of an arbitrary two-particle state using a maximally entangled EPRpair 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 receiverneeds to introduce an auxiliary qubit,and performs a series of appropriate unitary transformations on his particles.Theoriginal state can be teleported successfully with the probability 2 cos2 9.
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