论文标题
统一矩阵的数值范围的扰动
Perturbation of the numerical range of unitary matrices
论文作者
论文摘要
在这项工作中，我们展示了如何解决统一矩阵的数值范围的问题。这项任务对量子测量的歧视研究具有深远的影响。我们通过引入一种方法来实现上述操作，该方法使我们能够找到一个统一矩阵，其数值范围包含起点，同时，在给定度量中，单位矩阵及其扰动之间的距离相对小。
In this work we show how to approach the problem of manimulating the numerical range of a unitary matrix. This task has far-reaching impact on the study of discrimination of quantum measurements. We achieve the aforementioned manipulation by introducing a method which allows us to find a unitary matrix whose numerical range contains the origin where at the same time the distance between unitary matrix and its perturbation is relative small in given metric.
