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research article

On multivariate trace inequalities of Sutter, Berta, and Tomamichel

Lemm, Marius  
2018
Journal of Mathematical Physics

We consider a family of multivariate trace inequalities recently derived by Sutter, Berta, and Tomamichel. These inequalities generalize the Golden-Thompson inequality and Lieb’s triple matrix inequality to an arbitrary number of matrices in a way that features complex matrix powers (i.e., certain unitaries). We show that their inequalities can be rewritten as an n-matrix generalization of Lieb’s original triple matrix inequality. The complex matrix powers are replaced by resolvents and appropriate maximally entangled states. We expect that the technically advantageous properties of resolvents, in particular for perturbation theory, can be of use in applications of the n-matrix inequalities, e.g., for analyzing the performance of the rotated Petz recovery map in quantum information theory and for removing the unitaries altogether.

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Type
research article
DOI
10.1063/1.5001009
Author(s)
Lemm, Marius  
Date Issued

2018

Published in
Journal of Mathematical Physics
Volume

59

Issue

1

Article Number

012204

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
CAMP  
Available on Infoscience
October 1, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/172105
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