Quantum correlation exists in any non-product state
classification
🪐 quant-ph
math-phmath.MP
keywords
correlationquantumbasesbipartitefeaturenon-productstatecharacteristic
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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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