论文标题
在耗散环境中连续变量量子传送：嘈杂通道前后的非高斯操作的比较
Continuous variable quantum teleportation in a dissipative environment: Comparison of non-Gaussian operations before and after noisy channel
论文作者
论文摘要
当非高斯操作（即光子减法，加法和催化）是在与嘈杂的通道相互作用之前和之后，我们探讨了连续可变量子传送的相对优势。我们生成了使用两种不同的策略传送未知的连贯和挤压真空状态的资源状态：（i）在与嘈杂的渠道互动之前，实施非高斯对TMSV状态的非高斯操作，（ii）在与噪声渠道交互后实施非高斯行动。结果表明，这两种策略中的任何一种可能比其他策略更有益，具体取决于非高斯操作的类型，TMSV状态的初始挤压以及表征嘈杂通道的参数。可以利用该策略在耗散环境中有效提高各种非高斯连续可变量子信息处理任务的效率。
We explore the relative advantages in continuous-variable quantum teleportation when non-Gaussian operations, namely, photon subtraction, addition, and catalysis, are performed before and after interaction with a noisy channel. We generate the resource state for teleporting unknown coherent and squeezed vacuum states using two distinct strategies: (i) Implementation of non-Gaussian operations on TMSV state before interaction with a noisy channel, (ii) Implementation of non-Gaussian operations after interaction of TMSV state with a noisy channel. The results show that either of the two strategies could be more beneficial than the other depending on the type of the non-Gaussian operation, the initial squeezing of the TMSV state, and the parameters characterizing the noisy channel. This strategy can be utilized to effectively improve the efficiency of various non-Gaussian continuous variable quantum information processing tasks in a dissipative environment.
