Long-distance entanglement in spin systems

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dc.creatorVenuti, L. Campos
dc.creatorBoschi, C. Degli Esposti
dc.creatorRoncaglia, M.
dc.date2006-04-28
dc.date2006-06-26
dc.date.accessioned2026-07-07T07:11:58Z
dc.date.available2026-07-07T07:11:58Z
dc.descriptionMost quantum system with short-ranged interactions show a fast decay of entanglement with the distance. In this Letter, we focus on the peculiarity of some systems to distribute entanglement between distant parties. Even in realistic models, like the spin-1 Heisenberg chain, sizable entanglement is present between arbitrarily distant particles. We show that long distance entanglement appears for values of the microscopic parameters which do not coincide with known quantum critical points, hence signaling a transition detected only by genuine quantum correlations.
dc.descriptionRevTex, 5 pages, 7 .eps figures Two references added in published version
dc.identifierhttps://arxiv.org/abs/quant-ph/0604215
dc.identifierhttp://arxiv.org/abs/quant-ph/0604215
dc.identifierPhys. Rev. Lett. 96, 247206 (2006)
dc.identifierdoi:10.1103/PhysRevLett.96.247206
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/111959
dc.subjectQuantum Physics
dc.subjectStrongly Correlated Electrons
dc.titleLong-distance entanglement in spin systems
dc.typetext

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