论文标题
纠缠作为上限，以实现一般双Quity系统的非局部性
Entanglement as upper bounded for the nonlocality of a general two-qubit system
论文作者
论文摘要
非局部性和纠缠不仅是量子力学的基本特征，而且是用于量子信息和计算应用程序的重要资源。利用两个不同资源之间的定量关系既具有理论和实际意义。量化两量态状态的非局部性的共同选择是最大程度地违反了clauser-horne shorne shimony-holt不平等。纠缠是形成的纠缠，这是同意的函数。在本文中，我们系统地研究了一般两数分系统的纠缠与非局部性之间的定量关系。我们重新定位了一个已知的上限，依赖于状态的纠缠的一般两分国家的非局部性。我们研究了可以通过相同的非局部测试设置最佳刺激两个不同两个Quibent状态的非局部性，并找到具有此属性的两数Qubit状态对的类别。最后，我们获得了可以达到上限的必要条件。
Nonlocality and entanglement are not only the fundamental characteristics of quantum mechanics but also important resources for quantum information and computation applications. Exploiting the quantitative relationship between the two different resources is of both theoretical and practical significance. The common choice for quantifying the nonlocality of a two-qubit state is the maximal violation of the Clauser-Horne-Shimony-Holt inequality. That for entanglement is entanglement of formation, which is a function of the concurrence. In this paper, we systematically investigate the quantitative relationship between the entanglement and nonlocality of a general two-qubit system. We rederive a known upper bound on the nonlocality of a general two-qubit state, which depends on the state's entanglement. We investigate the condition that the nonlocality of two different two-qubit states can be optimally stimulated by the same nonlocality test setting and find the class of two-qubit state pairs that have this property. Finally, we obtain the necessary and sufficient condition that the upper bound can be reached.
