论文标题
一些具有三个结果的量子测量可以揭示所有两种结果测量结果都无法做到的非经典性
Some quantum measurements with three outcomes can reveal nonclassicality where all two-outcome measurements fail to do so
论文作者
论文摘要
测量是量子世界与我们的经典感知之间的中间通信层。因此，哪些测量有效地从量子系统中提取信息的问题是核心意义。使用量子转向作为一种非经典现象，我们表明在某些情况下，可以以经典的方式来解释所有两种结果测量的结果，而某些三种结果测量结果的结果则不能。这表明，结果数量在揭示量子系统中隐藏的非经典性方面的重要作用。此外，我们的方法可以通过提供量子转向的新标准和改进的构建局部隐藏变量模型的方法来提高对量子相关性的理解。
Measurements serve as the intermediate communication layer between the quantum world and our classical perception. So, the question which measurements efficiently extract information from quantum systems is of central interest. Using quantum steering as a nonclassical phenomenon, we show that there are instances, where the results of all two-outcome measurements can be explained in a classical manner, while the results of some three-outcome measurements cannot. This points at the important role of the number of outcomes in revealing the nonclassicality hidden in a quantum system. Moreover, our methods allow to improve the understanding of quantum correlations by delivering novel criteria for quantum steering and improved ways to construct local hidden variable models.
