Comment on "multiparty quantum mutual information: An alternative definition"

Jaehak Lee, Gibeom Noh, Changsuk Noh, Jiyong Park

Research output: Contribution to journalReview articlepeer-review

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Abstract

We show that, contrary to the claim by Kumar [Phys. Rev. A 96, 012332 (2017)2469-992610.1103/PhysRevA.96.012332], the quantum dual total correlation of an n-partite quantum state cannot be represented as the quantum relative entropy between n-1 copies of the quantum state and the product of n different reduced quantum states for n≥3. Specifically, we argue that the latter fails to yield a finite value for generalized n-partite Greenberger-Horne-Zeilinger states.

Original languageEnglish
Article number066401
JournalPhysical Review A
Volume108
Issue number6
DOIs
StatePublished - Dec 2023

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