Entanglement and Complementarity

Speaker: 
Event: 
IICQI 2014
Talk type: 
Keynote
Abstract: 

We show that states that have more correlations among complementary observables must be entangled. The reverse is false: general entangled states do not have more correlations on complementary observables than separable ones. We either prove or conjecture that this is true for different measures of correlation: the mutual information, the sum of conditional probabilities and the Pearson correlation coefficient. We also show that states with nonzero discord typically have less correlation than classically correlated states.

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