Observation of three-photon Greenberger-Horne-Zeilinger entanglement

被引:898
作者
Bouwmeester, D [1 ]
Pan, JW [1 ]
Daniell, M [1 ]
Weinfurter, H [1 ]
Zeilinger, A [1 ]
机构
[1] Univ Innsbruck, Inst Expt Phys, A-6020 Innsbruck, Austria
关键词
D O I
10.1103/PhysRevLett.82.1345
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present the experimental observation of polarization entanglement for three spatially separated photons. Such states of more than two entangled particles, known as Greenberger-Horne-Zeilinger (GHZ) states, play a crucial role in fundamental tests of quantum mechanics versus local realism and in many quantum information and quantum computation schemes. Our experimental arrangement is such that we start with two pairs of entangled photons and register the photons in a way that any information as to which pair each photon belongs to is erased. After detecting a trigger photon, the registered events at the detectors for the remaining three photons exhibit the desired GHZ correlations. [S0031-9007(98)08348-3].
引用
收藏
页码:1345 / 1349
页数:5
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