Critical Behavior of CP^1 at theta = pi, Haldane's Conjecture and the Universality Class

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dc.creatorAzcoiti, V.
dc.creatorDi Carlo, G.
dc.creatorGalante, A.
dc.date2007-10-08
dc.date.accessioned2026-07-07T11:19:50Z
dc.date.available2026-07-07T11:19:50Z
dc.descriptionUsing an approach to analyze the theta dependence of systems with a theta-term we recently proposed, the critical behavior of CP^1 at theta=pi is studied. We find a region outside the strong coupling regime where Haldane's conjecture is verified. The critical line however does not belong to the universality class of the Wess-Zumino-Novikov-Witten model at topological coupling k=1 since it shows continuously varying critical exponents.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0710.1507
dc.identifierhttp://arxiv.org/abs/0710.1507
dc.identifierPhys.Rev.Lett.98:257203,2007
dc.identifierdoi:10.1103/PhysRevLett.98.257203
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193820
dc.subjectHigh Energy Physics - Lattice
dc.subjectStatistical Mechanics
dc.titleCritical Behavior of CP^1 at theta = pi, Haldane's Conjecture and the Universality Class
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