Extracting an arbitrary relative phase from a multiqubit two-component entangled state

被引：3
|
作者：
Yang, CP [1 ]
Han, SY [1 ]
机构：
[1] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA
来源：
PHYSICAL REVIEW A | 2005年 / 72卷 / 01期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevA.72.014306
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We show that an arbitrary relative phase can be extracted from a multiqubit two-component (MTC) entangled state by local Hadamard transformations and measurements along a single basis only. In addition, how to distinguish a MTC entangled state with an arbitrary entanglement degree and relative phase from a class of multiqubit mixed states is discussed.
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页数：4
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