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Comment on 'Multiparty quantum mutual information: An alternative definition'

Authors :
Lee, Jaehak
Noh, Gibeom
Noh, Changsuk
Park, Jiyong
Source :
Phys. Rev. A 108, 066401 (2023)
Publication Year :
2023

Abstract

We show that, contrary to the claim by Kumar [Phys. Rev. A 96, 012332 (2017)], 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 $n \geq 3$. Specifically, we argue that the latter fails to yield a finite value for generalized $n$-partite Greenberger-Horne-Zeilinger states.<br />Comment: 2 pages, close to published version

Subjects

Subjects :
Quantum Physics

Details

Database :
arXiv
Journal :
Phys. Rev. A 108, 066401 (2023)
Publication Type :
Report
Accession number :
edsarx.2401.00218
Document Type :
Working Paper
Full Text :
https://doi.org/10.1103/PhysRevA.108.066401