Variance-based uncertainty relations

被引:64
|
作者
Huang, Yichen [1 ]
机构
[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
来源
PHYSICAL REVIEW A | 2012年 / 86卷 / 02期
关键词
ENTROPIC UNCERTAINTY;
D O I
10.1103/PhysRevA.86.024101
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Uncertainty relations are fundamental in quantum mechanics. Here I propose state-independent variance-based uncertainty relations for two or more arbitrary observables in finite dimensional spaces. The uncertainty relations provide near-optimal lower bounds in some typical examples, and are useful for entanglement detection.
引用
收藏
页数:2
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