Quantum correlation exists in any non-product state
arXiv:1409.3679 · doi:10.1038/srep07179
Abstract
Simultaneous existence of correlation in complementary bases is a fundamental feature of quantum correlation, and we show that this characteristic is present in any non-product bipartite state. We propose a measure via mutually unbiased bases to study this feature of quantum correlation, and compare it with other measures of quantum correlation for several families of bipartite states.
5 pages