Nonclassicality of quantum states: A hierarchy of observable conditions

被引：169
|
作者：
Richter, T [1 ]
Vogel, W [1 ]
机构：
[1] Univ Rostock, Fachbereich Phys, Arbeitsgrp Quantenopt, D-18051 Rostock, Germany
来源：
PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 28期
关键词：
D O I：
10.1103/PhysRevLett.89.283601
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A necessary and sufficient hierarchy of conditions is derived that is completely equivalent to the failure of the Glauber-Sudarshan P function to be a probability density. The conditions are formulated in terms of experimentally accessible characteristic functions of quadratures.
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页数：4
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