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Dominance of quantum over classical correlations: entropic and geometric approach

by: Zbigniew Walczak, Iwona Wintrowicz, Katarzyna Zakrzewska
(11 Mar 2013)  Key: citeulike:12106451

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Abstract

Recently, it was shown numerically that there exist states for which quantum correlations dominate over classical correlations. Inspired by this observation, we investigate the problem of quantum correlations dominance from the point of view of both entropic and geometric measures of correlations, considering two-qubit Bell-diagonal states for analytical simplicity. In particular, we show that there exist states for which the problem of quantum correlations dominance is undecidable.


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