Matrix trace inequalities related to the Tsallis relative entropies of real order

In this paper, we show matrix trace inequalities related to the Tsallis relative entropy of real order: For positive definite matrices ρ and σ, and each 00, where the Tsallis relative entropy Dα(ρ|σ) is defined by Dα(ρ|σ)=−Tr(ρ1−ασα−ρα) and the Tsallis relative operator entropy Tα(ρ|σ) is defined by...

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Veröffentlicht in:Journal of mathematical analysis and applications 2021-06, Vol.498 (1), p.124877, Article 124877
Hauptverfasser: Fujii, Masatoshi, Seo, Yuki
Format: Artikel
Sprache:eng
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Zusammenfassung:In this paper, we show matrix trace inequalities related to the Tsallis relative entropy of real order: For positive definite matrices ρ and σ, and each 00, where the Tsallis relative entropy Dα(ρ|σ) is defined by Dα(ρ|σ)=−Tr(ρ1−ασα−ρα) and the Tsallis relative operator entropy Tα(ρ|σ) is defined by Tα(ρ|σ)=ρ♯ασ−ρα, where ♯α is the matrix α-geometric mean. Moreover, we show estimates of the difference between two Tsallis relative entropies of real order.
ISSN:0022-247X
1096-0813
DOI:10.1016/j.jmaa.2020.124877