数学理论与应用 ›› 2023, Vol. 43 ›› Issue (2): 82-91.doi: 10.3969/j.issn.1006-8074.2023.02.006

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无限维希尔伯特空间上保密度算子凸组合的一般熵映射

贾凤阳1,*,张艳芳2 ,  贺衎2
  

  1. 1. 数学与统计学院, 渭南师范学院, 渭南, 714000;   2. 数学学院, 太原理工大学, 太原, 030024.
  • 出版日期:2023-06-28 发布日期:2023-06-27
  • 通讯作者: 贾凤阳(1995–); E-mail: fengyangjia22@163.com E-mail:fengyangjia22@163.com
  • 基金资助:
    陕西省教育厅2021 年度一般专项科研计划项目(No. 21JK0637) 资助.

Maps Preserving Generalized Entropy of Convex Combination of Density Operators on Infinite Dimensional Hilbert Spaces

Jia Fengyang1,*,Zhang Yanfang2,  He Kan2   

  1. 1. College of Mathematics and Statistics, Weinan Normal University, Weinan 714000, China; 2. College of Mathematics, Taiyuan University of Technology, Taiyuan 030024, China.
  • Online:2023-06-28 Published:2023-06-27

摘要: 令$\mathcal H$是无限维复希尔伯特空间, $S$($\mathcal H$)是$\mathcal H$上 密度算子的集合,即在$\mathcal H$上为正且迹为一的有界线性算子的全体.本文给出在$S$($\mathcal H$)上保密度算子凸组合的一般熵映射的刻画.

Abstract:  Let $\mathcal H$ be an infinite dimensional complex Hilbert space, and $S(\mathcal H)$ the set of density operators on $\mathcal H$, i.e., the set of all positive and trace one bounded linear operators on $\mathcal H$. In this paper, we give a characterization of the maps preserving generalized entropy of convex combination of density operators on $S(\mathcal H)$.