Generic gauge fields in the Hubbard model: emergence of pairing interaction

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dc.creatorKopec, T. K.
dc.date2006-05-05
dc.date.accessioned2026-07-07T07:08:46Z
dc.date.available2026-07-07T07:08:46Z
dc.descriptionThe spin-rotationally invariant SU(2) approach to the Hubbard model is extended to accommodate the charge degrees of freedom. Both U(1) and SU(2) gauge transformation are useed to factorize the charge and spin contribution to the original electron operator in terms of the emergent gauge fields. It is shown that these fields play a similar role as phonons in the BCS theory: they provide the "glue" for fermion pairing. By tracing out gauge bosons the form of paired states is established and the role of antiferromagnetic correlations is explicated.
dc.description4+ pages
dc.identifierhttps://arxiv.org/abs/cond-mat/0605129
dc.identifierhttp://arxiv.org/abs/cond-mat/0605129
dc.identifierPhys. Rev. B 73, 132512 (2006)
dc.identifierdoi:10.1103/PhysRevB.73.132512
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/110827
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleGeneric gauge fields in the Hubbard model: emergence of pairing interaction
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