Doped Singlet-Pair Crystal in the Hubbard model on the checkerboard lattice

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dc.creatorPoilblanc, Didier
dc.creatorPenc, Karlo
dc.creatorShannon, Nic
dc.date2007-02-15
dc.date2007-04-20
dc.date.accessioned2026-07-07T08:12:31Z
dc.date.available2026-07-07T08:12:31Z
dc.descriptionIn the limit of large nearest--neighbor and on--site Coulomb repulsions, the Hubbard model on the planar pyrochlore lattice maps, near quarter-filling, onto a doped quantum fully packed loop model. The phase diagram exhibits at quarter filling a novel quantum state of matter, the Resonating Singlet-Pair Crystal, an insulating phase breaking lattice symmetry. Properties of a few doped holes are investigated. In contrast to the doped quantum antiferromagnet, phase separation is restricted to very small hopping leaving an extended``window'' for superconducting pairing. However the later is more fragile for large hopping than in the case of the antiferromagnet.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0702367
dc.identifierhttp://arxiv.org/abs/cond-mat/0702367
dc.identifierPhys. Rev. B 75, 220503(R) (2007)
dc.identifierdoi:10.1103/PhysRevB.75.220503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/132480
dc.subjectStrongly Correlated Electrons
dc.titleDoped Singlet-Pair Crystal in the Hubbard model on the checkerboard lattice
dc.typetext

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