Probabilistic Teleportation of Three-Atom State via Five-Atom Cluster State
Probabilistic Teleportation of Three-Atom State via Five-Atom Cluster State
复制标题
通过五原子簇态的三原子态概率隐形传态
DOI：
10.1088/0253-6102/59/6/08
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发表时间：
2013-06
影响因子：
3.1
通讯作者：
Wu Tao
中科院分区：
文献类型：
--
作者：
Yu Li-Zhi;Wu Tao
提出了一种利用五原子非最大纠缠团簇态作为量子信道实现未知三原子纠缠态概率隐形传态的方案。在该方案中，发送方对原子进行两次Bell态和一次单原子测量，接收方根据发送方Alice的测量结果，通过引入辅助原子，并进行适当的幺正变换和控制非（C-not）运算，以一定的概率重建原态.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。如果我们采用一个最大纠缠的团簇态作为量子信道，概率隐形传态方案就变成了通常的隐形传态，成功概率为100%。
A scheme for probabilistic teleportation of an unknown three-atom entangled state via a five-atom non-maximally entangled cluster 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 channel, the probabilistic teleportation scheme becomes usual teleportation, the successful probability being 100%.
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通讯作者：
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