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arXiv · 0806.4861

Total correlations and mutual information

Zbigniew Walczak
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Abstract

In quantum information theory it is generally accepted that quantum mutual information is an information-theoretic measure of total correlations of a bipartite quantum state. We argue that there exist quantum states for which quantum mutual information cannot be considered as a measure of total correlations. Moreover, for these states we propose a different way of quantifying total correlations.

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Zbigniew Walczak. 2008-06-30. Total correlations and mutual information. https://doi.org/10.1016/j.physleta.2009.03.047

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