Bell inequality violation with two remote atomic qubits

被引：242
|
作者：
Matsukevich, D. N. [1 ]
Maunz, P.
Moehring, D. L.
Olmschenk, S.
Monroe, C.
机构：
[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
[2] Univ Maryland, Joint Quantum Inst, College Pk, MD 20742 USA
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 15期
关键词：
D O I：
10.1103/PhysRevLett.100.150404
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We observe violation of a Bell inequality between the quantum states of two remote Yb+ ions separated by a distance of about 1 m with the detection loophole closed. The heralded entanglement of two ions is established via interference and joint detection of two emitted photons, whose polarization is entangled with each ion. The entanglement of remote qubits is also characterized by full quantum state tomography.
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页数：4
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