论文标题
与设备无关测量不兼容的量化
Device-independent quantification of measurement incompatibility
论文作者
论文摘要
对于观察非局部相关性，必须进行不兼容的测量，即无法同时执行的测量值。自然要问，例如，要达到一定的违反铃铛不平等的行为，必须多么不兼容。在这项工作中，我们提供了贝尔非局部性与测量不相容的量化之间的直接联系。这包括用于不兼容和真实形式不相容的测量值的量词。我们的方法直接概括以在系统的维度（半设备独立的方法）和投影测量方面包含约束，从而在不兼容量化器上提供了改善的界限，并包括准备和估计的情况。
Incompatible measurements, i.e., measurements that cannot be simultaneously performed, are necessary to observe nonlocal correlations. It is natural to ask, e.g., how incompatible the measurements have to be to achieve a certain violation of a Bell inequality. In this work, we provide the direct link between Bell nonlocality and the quantification of measurement incompatibility. This includes quantifiers for both incompatible and genuine-multipartite incompatible measurements. Our method straightforwardly generalizes to include constraints on the system's dimension (semi-device-independent approach) and on projective measurements, providing improved bounds on incompatibility quantifiers, and to include the prepare-and-measure scenario.
