The Saturation of Several Universal Inequalities in Information-Processing

In this paper, we characterize the saturation of four universal inequalities in quantum information theory, including a variant version of strong subadditivity inequality for von Neumann entropy, the coherent information inequality, the Holevo quantity, and average entropy inequalities. These result...

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Bibliographic Details
Published inCommunications in theoretical physics Vol. 63; no. 4; pp. 427 - 430
Main Author 张林 武俊德 费少明
Format Journal Article
LanguageEnglish
Published 01.04.2015
Subjects
Coherence
Entropy
Entropy (Information)
Inequalities
Quantum phenomena
Saturation
Sheds
Theoretical physics
不等式
信息处理
可加性
平均熵
量子信息理论
饱和度
Online AccessGet full text
ISSN0253-6102
1572-9494
DOI10.1088/0253-6102/63/4/427

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Summary:In this paper, we characterize the saturation of four universal inequalities in quantum information theory, including a variant version of strong subadditivity inequality for von Neumann entropy, the coherent information inequality, the Holevo quantity, and average entropy inequalities. These results shed new light on quantum information inequalities.
Bibliography:ZHANG Lin , WU Jun-De ,FEI Shao-Ming （1Institute of Mathematics, Hangzhou Dianzi University, Hangzhou 310018, China; 2Department of Mathematics, Zhejiang University, Hangzhou 310027, China; 3School of Mathematics of Sciences, Capital Normal University, Beijing 100048, China）
In this paper, we characterize the saturation of four universal inequalities in quantum information theory, including a variant version of strong subadditivity inequality for von Neumann entropy, the coherent information inequality, the Holevo quantity, and average entropy inequalities. These results shed new light on quantum information inequalities.
11-2592/O3
strong subadditivity,coherent information,Holevo quantity,quantum channel
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SourceType-Scholarly Journals-1
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ISSN:0253-6102
1572-9494
DOI:10.1088/0253-6102/63/4/427