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On Mutual Information in Multipartite Quantum States and Equality in Strong Subadditivity of Entropy

Fedor Herbut
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Abstract

The challenge of equality in the strong subadditivity inequality of entropy is approached via a general additivity of correlation information in terms of nonoverlapping clusters of subsystems in multipartite states (density operators). A family of tripartite states satisfying equality is derived.

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Fedor Herbut. 2003-11-27. On Mutual Information in Multipartite Quantum States and Equality in Strong Subadditivity of Entropy. https://doi.org/10.1088/0305-4470/37/10/016

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