Quantum correlation exists in any non-product state

Yu Guo; Shengjun Wu

doi:10.1038/srep07179

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arXiv · 1409.3679

Quantum correlation exists in any non-product state

Yu Guo·Shengjun Wu

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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.

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Yu Guo, Shengjun Wu. 2014-09-12. Quantum correlation exists in any non-product state. https://doi.org/10.1038/srep07179

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