Assisted hopping and interaction effects in impurity models

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dc.creatorBorda, L.
dc.creatorGuinea, F.
dc.date2004-04-26
dc.date.accessioned2026-07-07T02:57:49Z
dc.date.available2026-07-07T02:57:49Z
dc.descriptionWe study, using Numerical Renormalization Group methods, the generalization of the Anderson impurity model where the hopping depends on the filling of the impurity. We show that the model, for sufficiently large values of the assisted hopping term, shows a regime where local pairing correlations are enhanced. These correlations involve pairs fluctuating between on site and nearest neighbor positions.
dc.identifierhttps://arxiv.org/abs/cond-mat/0404612
dc.identifierhttp://arxiv.org/abs/cond-mat/0404612
dc.identifierPhys. Rev. B 70, 125118 (2004)
dc.identifierdoi:10.1103/PhysRevB.70.125118
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23824
dc.subjectStrongly Correlated Electrons
dc.titleAssisted hopping and interaction effects in impurity models
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