Probabilistic Teleportation of Three-Atom State via Five-Atom Cluster State

Probabilistic Teleportation of Three-Atom State via

Five-Atom Cluster State

YU Li-Zhi;WU Tao

【期刊名称】《理论物理通讯（英文版）》 【年(卷),期】2013(059)006

【摘要】A scheme for probabilistic teleportation of an unknown three-atom entangled state via a five-atom nonmaximally entangled duster state as quantum channel is proposed.In this scheme,the sender performs two Bell state and a single-atom measurements on the atoms,the receiver can reconstruct the original state with a certain probability by introducing an auxiliary atom and operating appropriate unitary transformations and controlled-not (C-not) operations according to the sender Alice's measurement results.As a result,the probability of successful teleportation is determined by the smallest two of the coefficients' absolute values of the cluster state.The considerable advantage of our scheme is that we employ a non-maximally entangled cluster state as quantum channel in the scheme,which can greatly reduce the amount of entanglement resources and need less classical bits.If we employ a maximally entangled cluster state as quantum channei,the

probabilistic

teleportation

scheme

becomes

usual

teleportation,the successful probability being 100％. 【总页数】3页(700-702)