Frustration, Area Law, and Interference in Quantum Spin Models

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dc.creatorDe, Aditi Sen
dc.creatorSen, Ujjwal
dc.creatorDziarmaga, Jacek
dc.creatorSanpera, Anna
dc.creatorLewenstein, Maciej
dc.date2007-06-14
dc.date2008-10-30
dc.date.accessioned2026-07-07T10:13:43Z
dc.date.available2026-07-07T10:13:43Z
dc.descriptionWe study frustrated quantum systems from a quantum information perspective. Within this approach, we find that highly frustrated systems do not follow any general ''area law'' of block entanglement, while weakly frustrated ones have area laws similar to those of nonfrustrated systems away from criticality. To calculate the block entanglement in systems with degenerate ground states, typical in frustrated systems, we define a ''cooling'' procedure of the ground state manifold, and propose a frustration degree and a method to quantify constructive and destructive interference effects of entanglement.
dc.description4 (+ epsilon) pages, 1 eps figure, RevTeX4; v1: 4 pages, 2 eps figures; v2: presentation improved, further models analyzed, published version
dc.identifierhttps://arxiv.org/abs/0706.2094
dc.identifierhttp://arxiv.org/abs/0706.2094
dc.identifierPhys. Rev. Lett. 101, 187202 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.187202
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/172629
dc.subjectQuantum Physics
dc.subjectOther Condensed Matter
dc.titleFrustration, Area Law, and Interference in Quantum Spin Models
dc.typetext

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