On detection of quasiclassical states

被引:15
作者
Oszmaniec, Michal [1 ]
Kus, Marek [1 ]
机构
[1] Polish Acad Sci, Ctr Theoret Phys, PL-02668 Warsaw, Poland
关键词
SYSTEMS;
D O I
10.1088/1751-8113/45/24/244034
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We give a criterion of classicality formixed states in terms of expectation values of a quantum observable. Using group representation theory, we identify all cases when the criterion can be computed exactly in terms of the spectrum of a single operator. This article is part of a special issue of Journal of Physics A: Mathematical and Theoretical devoted to 'Coherent states: mathematical and physical aspects'.
引用
收藏
页数:13
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