Probabilistic Teleportation of Three-Qubit Entangled State via Five-qubit Cluster State
Probabilistic Teleportation of Three-Qubit Entangled State via Five-qubit Cluster State
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DOI：
10.1007/s10773-012-1463-5
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发表时间：
2013-01
影响因子：
1.4
通讯作者：
Li-zhi Yu;Tao Wu
中科院分区：
文献类型：
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作者：
Li-zhi Yu;Tao Wu
提出了一种利用五比特非最大纠缠团簇态作为量子信道实现未知三比特纠缠态概率隐形传态的方案。在该方案中，发送方对量子比特进行两次Bell态测量和一次单量子比特测量，接收方通过适当的幺正变换和控制非（C-not）操作，以一定的概率重构出原态。因此，成功隐形传态的概率取决于团簇态系数绝对值中最小的两个。该方案的一个显著优点是采用非最大纠缠的团簇态作为量子信道，大大减少了纠缠资源的数量，并且所需的经典比特数较少。
A scheme for probabilistic teleportation of an unknown three-qubit entangled state via a five-qubit non-maximally entangled cluster state as quantum channel is proposed. In this scheme, the sender performs two Bell state and a single-qubit measurements on the qubits, the receiver can reconstruct the original state with a certain probability by making appropriate unitary transformations and controlled-not (C-not) operations. 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.