广义量子测量的图形表示
Graphical representation of generalized quantum measurements
摘要：
我们提出了广义量子测量（POVM）的图形表示。我们表示POVM元素作为布洛赫向量，并找到这些向量应该满足的条件，以描述可实现的物理测量。我们展示了如何以图形方式找到测量结果的概率。整个形式主义被应用于非正交量子态的明确判别。
英文摘要：
We present graphical representation for genaralized quantum measurements (POVM). We represent POVM elements as Bloch vectors and find the conditions these vectors should satisfy in order to describe realizable physical measurements. We show how to find probability of measurement outcome in a graphical way. The whole formalism is applied to unambigous discrimination of nonorthogonal quantum states.
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