Minimal optimal generalized quantum measurements

被引：70

作者：

Latorre, JI ^{[1
]}

Pascual, P ^{[1
]}

Tarrach, R ^{[1
]}

机构：

[1] Univ Barcelona, Fac Fis, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.81.1351

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Optimal and finite positive operator valued measurements on a finite number N of identically prepared systems have recently been presented. With physical realization in mind, we propose here optimal and minimal generalized quantum measurements for two-level systems. We explicitly construct them up to N = 7 and verify that they are minimal up to N = 5.

引用

页码：1351 / 1354

页数：4

共 6 条

[1] Universal algorithm for optimal estimation of quantum states from finite ensembles via realizable generalized measurement [J].