The n-th relative operator entropies and the n-th operator divergences
The n-th relative operator entropies and the n-th operator divergences
复制标题
第 n 个相对算子熵和第 n 个算子散度
DOI:
10.1007/s43034-019-00004-5
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发表时间:
2020
影响因子:
1
通讯作者:
M. Watanabe
中科院分区:
文献类型:
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作者:
H. Isa;Eizaburo Kamei;Hiroaki Tohyama;M. Watanabe
Let A and B be strictly positive linear operators on Hilbert space H H and n ∈ N n∈ N. We define the n-th relative operator entropy &S^ n (A| B) ≡ 1 n! A^ 1 2 (\log A^-1 2 BA^-1 2)^ n A^ 1 2=\displaystyle 1 n! A (A^-1 S (A| B))^ n S n (A| B)≡ 1 n! A 1 2 (log A-1 2 BA-1 2) n A 1 2= 1 n! A (A-1 S (A| B)) n and the n-th Tsallis relative operator entropy T^ n _x (A| B) T x n (A| B) inductively as follows: &T^ 1 _x (A| B) ≡ T_x (A| B)\mathrm and\&T^ n _x (A| B) ≡ T^ n-1 _x (A| B)-S^ n-1 (A| B) x x≠0)\mathrmfor\n≥2. Tx1(A|B)≡Tx(A|B)andTxn(A|B)≡Txn-1(A|B)-Sn-1(A|B)x(x≠0)forn≥2.ByintroducingtheTaylor’sexpansionofthepath A\natural_x\B A♮xBaround α∈R α∈R,weseethecoefficientofthe (x-α)^k (x-α)k-termisthek-thgeneralizedrelativeoperatorentropyandtheresidualtermdividedby (x-α)^n (x-α)nisthen-thresidualrelativeoperatorentropy.Inthispaper,weshowpropertiesofthesen-threlativeoperatorentropiesandrelationsamongthem.Inaddition,weintroducethen-thoperatorvalueddivergencesasthedifferencesbetweenthen-threlativeoperatorentropiesandshowsomepropertiesofthem.
DOI:
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发表时间:
2004
期刊:
Linear Alg.Appl. 381
影响因子:
--
作者:
古田孝之
通讯作者:
古田孝之