论文标题
区分量子幅度阻尼通道
Discriminating qubit amplitude damping channels
论文作者
论文摘要
我们通过探索多种策略来解决两量幅度阻尼渠道之间歧视的问题。对于单发，我们表明激动的状态并不总是给出最佳的输入，而侧面纠缠援助的收益有限。相反，环境的反馈帮助更为有益。对于两击，我们证明了纠缠输入的唯一性。然后专注于单个（本地）测量，我们找到了最佳的自适应策略。
We address the issue of the discrimination between two-qubit amplitude damping channels by exploring several strategies. For the single-shot, we show that the excited state does not always give the optimal input, and that side entanglement assistance has limited benefit. On the contrary, feedback assistance from the environment is more beneficial. For the two-shot, we prove the in-utility of entangled inputs. Then focusing on individual (local) measurements, we find the optimal adaptive strategy.
