论文标题
关于恒星和链网络中n位的最大量子违反行为
Regarding the Maximal Qubit Violations of n-Locality in Star and Chain Networks
论文作者
论文摘要
嘈杂的量子系统的非局部相关性对于理解自然和发展量子技术都很重要。我们考虑了通过非信号各方测量嘈杂的纠缠源的恒星和链量子网络的相关性。当在量子系统上考虑成对的局部二分法可观察结果时,我们得出了最大的N-局部违规行为,这些违规行为比以前报道的最大N-局部违规行为更大,对噪声更大。为了获得这些较大的值,我们考虑了先前研究中忽略的可观察物。因此,我们获得了对星际和链网络中自我测试测量和纠缠来源的新见解。
The nonlocal correlations of noisy quantum systems are important for both understanding nature and developing quantum technology. We consider the correlations of star and chain quantum networks where noisy entanglement sources are measured by nonsignaling parties. When pairs of local dichotomic observables are considered on qubit systems, we derive maximal n-local violations that are larger and more robust to noise than the maximal n-local violations reported previously. To obtain these larger values, we consider observables overlooked in the previous studies. Thus, we gain new insights into self-testing measurements and entanglement sources in star and chain networks.