Ground state entanglement in quantum spin chains

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dc.creatorLatorre, J. I.
dc.creatorRico, E.
dc.creatorVidal, G.
dc.date2003-04-14
dc.date2004-03-25
dc.date.accessioned2026-07-07T06:34:12Z
dc.date.available2026-07-07T06:34:12Z
dc.descriptionA microscopic calculation of ground state entanglement for the XY and Heisenberg models shows the emergence of universal scaling behavior at quantum phase transitions. Entanglement is thus controlled by conformal symmetry. Away from the critical point, entanglement gets saturated by a mass scale. Results borrowed from conformal field theory imply irreversibility of entanglement loss along renormalization group trajectories. Entanglement does not saturate in higher dimensions which appears to limit the success of the density matrix renormalization group technique. A possible connection between majorization and renormalization group irreversibility emerges from our numerical analysis.
dc.description26 pages, 16 figures, added references, minor changes. Final version
dc.identifierhttps://arxiv.org/abs/quant-ph/0304098
dc.identifierhttp://arxiv.org/abs/quant-ph/0304098
dc.identifierQuant.Inf.Comput. 4 (2004) 48-92
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/99448
dc.subjectQuantum Physics
dc.subjectCondensed Matter
dc.subjectHigh Energy Physics - Theory
dc.titleGround state entanglement in quantum spin chains
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