Order by disorder, without order, in a two-dimensional spin system with O(2) symmetry

dc.creatorBiskup, Marek
dc.creatorChayes, Lincoln
dc.creatorKivelson, Steven A.
dc.date2003-10-01
dc.date2004-05-07
dc.date.accessioned2026-07-07T04:30:36Z
dc.date.available2026-07-07T04:30:36Z
dc.descriptionWe present a rigorous proof of an ordering transition for a two-component two-dimensional antiferromagnet with nearest and next-nearest neighbor interactions. The low-temperature phase contains two states distinguished by local order among columns or, respectively, rows. Overall, there is no magnetic order in accord with the classic Mermin-Wagner theorem. The method of proof employs a rigorous version of "order by disorder," whereby a high degeneracy among the ground states is lifted according to the differences in their associated spin-wave spectra.
dc.description22 pages, 1 eps fig
dc.identifierhttps://arxiv.org/abs/math-ph/0310001
dc.identifierhttp://arxiv.org/abs/math-ph/0310001
dc.identifierAnn. Henri Poincaré 5 (2004), no. 6, 1181-1205
dc.identifierdoi:10.1007/s00023-004-0196-2
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/57518
dc.subjectMathematical Physics
dc.subjectStatistical Mechanics
dc.subjectProbability
dc.subject82B05; 82B26; 60F10
dc.titleOrder by disorder, without order, in a two-dimensional spin system with O(2) symmetry
dc.typetext

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