论文标题
用于测量在量子线上的随机单位通道的不确定性关系
An uncertainty relation for measurements of random unitary channels acting on a qubit
论文作者
论文摘要
通过准备输入状态并测量可观察到的输出状态，我们可以测量量子通道。按照Xiao等人给出的公式，我们研究了无友小的测量的不确定性关系。我们获得了一个明确的公式，并为此公式提供了必要和充分的条件。
By preparing an input state and measuring an observable for the output state, we can measure a quantum channel. Following the formulation given by Xiao et al., we study an uncertainty relation for ancilla-free measurements of random unitary channels acting on a qubit. We obtain an explicit formula and give a necessary and sufficient condition for this formula to be nontrivial.
