On Kadison-Schwarz Approximation to Positive Maps

被引：7

作者：

Chruscinski, Dariusz ^{[1
]}

Mukhamedov, Farrukh ^{[2
]}

Hajji, Mohamed Ali ^{[2
]}

机构：

[1] Nicolaus Copernicus Univ, Fac Phys Astron & Informat, Inst Phys, Grudziadzka 5-7, PL-87100 Torun, Poland

[2] United Arab Emirates Univ, Coll Sci, Dept Math Sci, POB 15551, Abu Dhabi, U Arab Emirates

来源：

OPEN SYSTEMS & INFORMATION DYNAMICS | 2020年 / 27卷 / 03期

关键词：

Positive maps; operator algebras; Kadison inequality; LINEAR MAPS;

D O I：

10.1142/S123016122050016X

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

We analyze Kadison-Schwarz approximation to positive maps in matrix algebras. This is an analogue of the well known structural physical approximation to positive maps used in entanglement theory. We study several known maps both decomposable (like transposition) and non-decomposable (like Choi map and its generalizations).

引用

页数：13

共 32 条

[1] Direct estimation of functionals of density operators by local operations and classical communication [J].