Indistinguishability of orthogonal time-separated bell states

被引：1
|
作者：
Tan Yong-Gang [1 ,2 ]
Cai Qing-Yu [1 ]
Shi Ting-Yun [1 ]
机构：
[1] Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonances & Atom & Mol Phys, Wuhan 430071, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
来源：
CHINESE PHYSICS B | 2008年 / 17卷 / 09期
基金：
中国国家自然科学基金;
关键词：
bell states; time-separated; indistinguishability;
D O I：
10.1088/1674-1056/17/9/007
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
This paper proves that it is impossible to identify orthogonally time-separated Bell states. If two qubits of a Bell state interact with the measurement apparatus at different time, any attempt to identify this state will disturb it.
引用
收藏
页码：3194 / 3197
页数：4
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