Theoretical Study on the Nonlocality of Quantum Mechanics based on Mesons

我们研究了基于介子等基本粒子的量子力学非局域性实验的几个相关问题。分析了由于粒子的不可分辨性和粒子衰变的被动性质而导致的建立量子关联的问题。我们提出了一套新的测量方法，用于描述许多粒子态（如GHZ和W）的纠缠。在我们对相关性的处理中，关于测量设置的纠缠的内在相对性质也变得透明。

We studied several issues associated with experiments designed for testing nonlocality of quantum mechanics based on elementary particles including mesons. The problems for establishing quantum correlations due to the indistinguishablity of particles and their passive nature of decays were analyzed. We proposed a novel set of measures which is useful to characterize the entanglement of many particle states (such as GHZ and W). The intrinsic relative nature of entanglement with respect to measurement setups was also made transparent in our treatment of correlations.