A criterion for entanglement in two two-level systems

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dc.creatorFerraro, E.
dc.creatorNapoli, A.
dc.creatorMessina, A.
dc.date2007-06-29
dc.date.accessioned2026-07-07T08:34:33Z
dc.date.available2026-07-07T08:34:33Z
dc.descriptionWe prove a necessary and sufficient condition for the occurrence of entanglement in two two-level systems, simple enough to be of experimental interest. Our results are illustrated in the context of a spin star system analyzing the exact entanglement evolution of the central couple of spins.
dc.description4 pages, Submitted to Physical Review Letters
dc.identifierhttps://arxiv.org/abs/0706.4399
dc.identifierhttp://arxiv.org/abs/0706.4399
dc.identifierJ. Phys. A: Math. Theor. 40 (2007) F935-F941
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/139474
dc.subjectQuantum Physics
dc.titleA criterion for entanglement in two two-level systems
dc.typetext

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