Spin Gap and Superconductivity in the One-Dimensional t-J Model with Coulomb Repulsion

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dc.creatorTroyer, M.
dc.creatorTsunetsugu, H.
dc.creatorRice, T. M.
dc.creatorRiera, J.
dc.creatorDagotto, E.
dc.date1992-12-23
dc.date.accessioned2026-07-07T06:29:17Z
dc.date.available2026-07-07T06:29:17Z
dc.descriptionThe one-dimensional t-J model with density-density repulsive interactions is investigated using exact diagonalization and quantum Monte Carlo methods. A short-range repulsion pushes phase separation to larger values of J/t, and leads to a widened precursor region in which a spin gap and strengthened superconducting correlations appear. The correlation exponent is calculated. On the contrary, a long-range repulsion of $1/r$-form suppresses superconductivity in the precursor region.
dc.description26 pages (RevTeX), 10 figures available upon request as PostScript file or hardcopy, IPS-Report Nr. 93/01
dc.identifierhttps://arxiv.org/abs/cond-mat/9212031
dc.identifierhttp://arxiv.org/abs/cond-mat/9212031
dc.identifierPhys. Rev. B 48, 004002 (1993)
dc.identifierdoi:10.1103/PhysRevB.48.4002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/97978
dc.subjectCondensed Matter
dc.titleSpin Gap and Superconductivity in the One-Dimensional t-J Model with Coulomb Repulsion
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