Experimental Analysis of a 4-Qubit Cluster State

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Linear optics quantum logic operations enabled the observation of a four-photon cluster state. We prove genuine four-partite entanglement and study its persistency, demonstrating remarkable differences to the usual GHZ state. Efficient analysis tools are introduced in the experiment, which will be of great importance in further studies on multi-particle entangled states.
5 pages, 4 figures, submitted

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Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/96932

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/quant-ph/0508128
 http://arxiv.org/abs/quant-ph/0508128
 Phys. Rev. Lett. 95, 210502 (2005)
 doi:10.1103/PhysRevLett.95.210502

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arXiv