论文标题
在存在异常值的情况下，高斯状态的强大相位估计
Robust phase estimation of Gaussian states in the presence of outlier quantum states
论文作者
论文摘要
在本文中，我们研究了在存在不可避免的噪声量子状态下估计相干状态相的问题。在本研究中，这些不必要的量子状态由异常量子状态表示。我们首先在量子系统中介绍稳健统计的统计框架，以处理异常量子状态。然后，我们应用M估计剂的方法来抑制由于异常量子状态而导致的不受信任的测量结果。我们的建议比经典方法具有系统性，易于实施和与嘈杂状态发生的强大的优势。
In this paper, we investigate the problem of estimating the phase of a coherent state in the presence of unavoidable noisy quantum states. These unwarranted quantum states are represented by outlier quantum states in this study. We first present a statistical framework of robust statistics in a quantum system to handle outlier quantum states. We then apply the method of M-estimators to suppress untrusted measurement outcomes due to outlier quantum states. Our proposal has the advantage over the classical methods in being systematic, easy to implement, and robust against occurrence of noisy states.
