Wang Kan, Yu Xu-Tao, Cai Xiao-Fei, Zhang Zai-Chen
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China.
State Key Lab. of Millimeter Waves, Southeast University, Nanjing 210096, China.
Entropy (Basel). 2018 Mar 29;20(4):238. doi: 10.3390/e20040238.
Quantum teleportation has significant meaning in quantum information. In particular, entangled states can also be used for perfectly teleporting the quantum state with some probability. This is more practical and efficient in practice. In this paper, we propose schemes to use non-symmetric quantum channel combinations for probabilistic teleportation of an arbitrary two-qubit quantum state from sender to receiver. The non-symmetric quantum channel is composed of a two-qubit partially entangled state and a three-qubit partially entangled state, where partially entangled Greenberger-Horne-Zeilinger (GHZ) state and W state are considered, respectively. All schemes are presented in detail and the unitary operations required are given in concise formulas. Methods are provided for reducing classical communication cost and combining operations to simplify the manipulation. Moreover, our schemes are flexible and applicable in different situations.
量子隐形传态在量子信息中具有重要意义。特别是，纠缠态也可用于以一定概率完美地隐形传输量子态。这在实践中更具实用性和高效性。在本文中，我们提出了利用非对称量子信道组合从发送者到接收者概率性隐形传输任意两比特量子态的方案。非对称量子信道由一个两比特部分纠缠态和一个三比特部分纠缠态组成，其中分别考虑了部分纠缠的格林伯格 - 霍恩 - 蔡林格（GHZ）态和W态。所有方案都进行了详细阐述，所需的酉操作以简洁公式给出。提供了降低经典通信成本和组合操作以简化操作的方法。此外，我们的方案具有灵活性，适用于不同情况。
