Estimating mixed quantum states

被引：15

作者：

Fischer, DG ^{[1
]}

Freyberger, M ^{[1
]}

机构：

[1] Univ Ulm, Abt Quantenphys, D-89069 Ulm, Germany

来源：

PHYSICS LETTERS A | 2000年 / 273卷 / 5-6期

关键词：

D O I：

10.1016/S0375-9601(00)00513-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss single adaptive measurements for the estimation of mixed quantum states of qubits. The results are compared to the optimal estimation schemes using collective measurements. We also demonstrate that the advantage of collective measurements increases when the degree of mixing of the quantum states increases. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：293 / 302

页数：10

共 21 条

[1]

BERGER J. O., 2013, Statistical Decision Theory and Bayesian Analysis, DOI [10.1007/978-1-4757-4286-2, DOI 10.1007/978-1-4757-4286-2]

[2] Optimal state estimation for d-dimensional quantum systems [J].