标题： 中子光学对量子均方根误差完整性的测试 显示英文标题

标题： Neutron optical test of completeness of quantum root-mean-square errors

摘要： 量子物理中的一个主要问题是将经典的均方根误差推广到量子测量，以获得一个满足合理性（对于任何准确的测量都消失）和完备性（仅对于准确的测量才消失）的误差度量。 基于噪声算子的误差度量通常用于此目的，但已被证明是不完备的。 最近，Ozawa提出了一个新的基于噪声算子的误差度量定义，使其同时具备合理性和完备性。 在这里，我们展示了新误差度量在投影（或锐利）以及广义（或不锐利）测量中的完备性的中子光学实验演示。 显示英文摘要

摘要： One of the major problems in quantum physics has been to generalize the classical root-mean-square error to quantum measurements to obtain an error measure satisfying both soundness (to vanish for any accurate measurements) and completeness (to vanish only for accurate measurements). A noise-operator based error measure has been commonly used for this purpose, but it has turned out incomplete. Recently, Ozawa proposed a new definition for a noise-operator based error measure to be both sound and complete. Here, we present a neutron optical demonstration for the completeness of the new error measure for both projective (or sharp) as well as generalized (or unsharp) measurements.