Efficient quantification of experimental evidence against local realism
Efficient quantification of experimental evidence against local realism
复制标题
DOI：
10.1103/physreva.88.052119
复制
发表时间：
2013-11-18
影响因子：
2.9
通讯作者：
Knill, Emanuel
中科院分区：
文献类型：
--
作者：
Zhang, Yanbao;Glancy, Scott;Knill, Emanuel
局部现实主义及其应用的测试旨在即使存在潜在的对抗性影响，其结果也具有很高的可信度。为此，可以测量反映局部实在论违反量的量，并根据局部实在论确定至少获得所观察到的违反的概率的界限。一般来说，很难获得足够鲁棒和小的界限。在这里，我们描述了一种有效的协议，用于根据任意数量的参与方、测量设置或结果的任意贝尔不等式集计算此类界限。该协议可应用于由线性不等式证明的其他属性（例如纠缠或维数）的测试。
Tests of local realism and their applications aim for very high confidence in their results even in the presence of potentially adversarial effects. For this purpose, one can measure a quantity that reflects the amount of violation of local realism and determine a bound on the probability, according to local realism, of obtaining a violation at least that observed. In general, it is difficult to obtain sufficiently robust and small bounds. Here we describe an efficient protocol for computing such bounds from any set of Bell inequalities for any number of parties, measurement settings, or outcomes. The protocol can be applied to tests of other properties (such as entanglement or dimensionality) that are witnessed by linear inequalities.