Quantum-state estimation

被引：385
|
作者：
Hradil, Z [1 ]
机构：
[1] PALACKY UNIV, DEPT OPT, OLOMOUC 77207, CZECH REPUBLIC
来源：
PHYSICAL REVIEW A | 1997年 / 55卷 / 03期
关键词：
D O I：
10.1103/PhysRevA.55.R1561
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An algorithm for quantum-state estimation based on the maximum-likelihood estimation is proposed. Existing techniques for state reconstruction based on the inversion of measured data are shown to be overestimated since they do not guarantee the positive definiteness of the reconstructed density matrix.
引用
收藏
页码：R1561 / R1564
页数：4
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