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Exact lower bounds to the ground-state energy of spin systems: The two-dimensional S=1/2 antiferromagnetic Heisenberg model

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dc.contributor.authorTarrach, R., 1948-cat
dc.contributor.authorValentí i Vall, M. Rosercat
dc.date.accessioned2009-10-22T10:20:54Z
dc.date.available2009-10-22T10:20:54Z
dc.date.issued1990cat
dc.description.abstractWe present a very simple but fairly unknown method to obtain exact lower bounds to the ground-state energy of any Hamiltonian that can be partitioned into a sum of sub-Hamiltonians. The technique is applied, in particular, to the two-dimensional spin-1/2 antiferromagnetic Heisenberg model. Reasonably good results are easily obtained and the extension of the method to other systems is straightforward.eng
dc.format.extent3 p.cat
dc.format.mimetypeapplication/pdfeng
dc.identifier.idgrec57979cat
dc.identifier.issn0163-1829cat
dc.identifier.urihttps://hdl.handle.net/2445/9768
dc.language.isoengeng
dc.publisherThe American Physical Societyeng
dc.relation.isformatofReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.41.9611cat
dc.relation.ispartofPhysical Review B, 1990, vol. 41, núm. 13, p. 9611-9613.eng
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevB.41.9611
dc.rights(c) The American Physical Society, 1990
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)
dc.subject.classificationSuperconductorscat
dc.subject.classificationMagnetismecat
dc.subject.otherSuperconductorseng
dc.subject.otherMagnetismeng
dc.titleExact lower bounds to the ground-state energy of spin systems: The two-dimensional S=1/2 antiferromagnetic Heisenberg modeleng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersion

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