On the decompositions of a quantum state

被引：15

作者：

Cassinelli, G

DeVito, E

Levrero, A

机构：

[1] Dipartimento di Fisica, Università di Genova/I.N.F.N., Sezione di Genova, 16146 Genova

来源：

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS | 1997年 / 210卷 / 02期

关键词：

D O I：

10.1006/jmaa.1997.5480

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

We classify all the decompositions of a quantum state as a weighted sum of one dimensional projectors. In particular we describe explicitly the set of irreducible decompositions. The physical interest in this problem rests on the possibility of interpreting the decomposition in terms of a classical mixture. (C) 1997 Academic Press.

引用

页码：472 / 483

页数：12

共 5 条

[1]

BUSH P, 1996, QUANTUM THEORY MEASU

[2] PROPERTIES OF MIXTURES ON NON-ORTHOGONAL STATES [J].