Uniform Quantification of Correlations for Bipartite Systems
arXiv:1704.03990 · doi:10.1103/PhysRevA.95.042316
Abstract
Based on the relative entropy, we give a unified characterization of quantum correlations for nonlocality, steerability, discord and entanglement for any bipartite quantum states. For two-qubit states we show that the quantities obtained from quantifying nonlocality, steerability, entanglement and discord have strictly monotonic relationship. As for examples, the Bell diagonal states are studied in detail.
4 pages, 3 figures