Rotor Spectra, Berry Phases, and Monopole Fields: from Antiferromagnets to QCD

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dc.creatorChandrasekharan, S.
dc.creatorJiang, F. -J.
dc.creatorPepe, M.
dc.creatorWiese, U. -J.
dc.date2006-12-11
dc.date.accessioned2026-07-07T11:57:35Z
dc.date.available2026-07-07T11:57:35Z
dc.descriptionThe order parameter of a finite system with a spontaneously broken continuous global symmetry acts as a quantum mechanical rotor. Both antiferromagnets with a spontaneously broken $SU(2)_s$ spin symmetry and massless QCD with a broken $SU(2)_L \times SU(2)_R$ chiral symmetry have rotor spectra when considered in a finite volume. When an electron or hole is doped into an antiferromagnet or when a nucleon is propagating through the QCD vacuum, a Berry phase arises from a monopole field and the angular momentum of the rotor is quantized in half-integer units.
dc.description4 pages
dc.identifierhttps://arxiv.org/abs/cond-mat/0612252
dc.identifierhttp://arxiv.org/abs/cond-mat/0612252
dc.identifierPhys.Rev.D78:077901,2008
dc.identifierdoi:10.1103/PhysRevD.78.077901
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205927
dc.subjectOther Condensed Matter
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Theory
dc.titleRotor Spectra, Berry Phases, and Monopole Fields: from Antiferromagnets to QCD
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