论文标题
对称双向量子传送，使用六分簇状态作为量子通道
Symmetric Bidirectional Quantum Teleportation using a Six-Qubit Cluster State as a Quantum Channel
论文作者
论文摘要
双向量子传送是在两个量子节点之间交换量子信息的基本方案。到目前为止，所有双向量子传送协议的最高效率为$ 40 \％$。在这里，我们提出了一种新的方案，用于使用六数分集群状态作为量子通道的对称双向量子传送，用于对称（$ 3 \ leftrightArrow3 $）Qubit Bivit Bixirectional量子量子传送，该量子双向双向量子传送。我们计划的新颖性在于它的概括（$ n \ leftrightArrow n $）Qubit双向量子传送，采用$ 2N $ Qubit的群集状态。拟议协议的效率显着提高到$ 50 \％$，到目前为止最高。有趣的是，只有GHz状态测量和四个Toffoli-Gate操作是必要的，这与要传送的数字$（n）$无关。
Bidirectional quantum teleportation is a fundamental protocol for exchanging quantum information between two quantum nodes. All bidirectional quantum teleportation protocols till now have achieved a maximum efficiency of $40\%$. Here, we propose a new scheme for symmetric bidirectional quantum teleportation using a six-qubit cluster state as the quantum channel, for symmetric ($3\leftrightarrow3$) qubit bidirectional quantum teleportation of a special three-qubit entangled state. The novelty of our scheme lies in its generalization for ($N\leftrightarrow N$) qubit bidirectional quantum teleportation employing a $2N$-qubit cluster state. The efficiency of the proposed protocol is remarkably increased to $50\%$ which is highest till now. Interestingly, only GHZ-state measurements and four Toffoli-gate operations are necessary which is independent of the number $(N)$ of qubits to be teleported.
