彭家寅, 莫智文. 几个确定型量子信道的构造[J]. 内江师范学院学报, 2014, (10): 1-12. DOI: 10.13603/j.cnki.51-1621/z.2014.10.001
    引用本文: 彭家寅, 莫智文. 几个确定型量子信道的构造[J]. 内江师范学院学报, 2014, (10): 1-12. DOI: 10.13603/j.cnki.51-1621/z.2014.10.001
    PENGJia-yin, MO Zhi-wen. Construction of Several Deterministic Quantum Channels[J]. Journal of Neijiang Normal University, 2014, (10): 1-12. DOI: 10.13603/j.cnki.51-1621/z.2014.10.001
    Citation: PENGJia-yin, MO Zhi-wen. Construction of Several Deterministic Quantum Channels[J]. Journal of Neijiang Normal University, 2014, (10): 1-12. DOI: 10.13603/j.cnki.51-1621/z.2014.10.001

    几个确定型量子信道的构造

    Construction of Several Deterministic Quantum Channels

    • 摘要: 通过概率信道的隐形传态通常依赖于高维的幺正操作,而在物理实验中实现高维的幺正操作是非常困难的. 为了了解怎样通过几个常见概率信道去构造确定性的量子信道.在方案中,发送者或接收者需要引入一个或多个辅助粒子到概率信道中使之融入并纠缠于原有量子, 然后对辅助粒子进行投影测量或半正定算子值测量,就能以一定概率建立起发送者及其客户之间的确定性量子信道. 在量子通信网络中,通常有多个不同的代理商作为发送者与接收者之间的中继节点,因此,给出了构造发送者和中继代理援助的接收者之间的确定性信道的几个方案.

       

      Abstract: Teleportation schemes based on probabilistic channels usually rely heavily on the implementation of high-dimensional unitary operations while high-dimensional unitary operations are verydiffcult to directly implement in physics experiments. This paper describes how to construct deterministic quantum channels via several commonly probabilistic channels. In our schemes, the sender orreceiver needs to introduce one or more auxiliary qubits into the probabilistic channel so that thesequbits are incorporated and entangled with the original qubits, and then execute a projective measurement or a positive operator-valued measure(POVM)on her/his qubits including the ancillas toestablish deterministic channel between the sender and her/his agents with a certain probability. In aquantum teleportation network, there are generally multi spatially remote agents which play the roleof relay nodes between a sender and a distant receiver. Hence, we present a scheme for constructing adeterministic channel between the sender and the distant receiver with the assistance of relay agents,respectively.

       

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