HAL (France)
open access
Superconductivity in the Repulsive Hubbard Model on Different Geometries Induced by Density-Assisted Hopping
We study the effect of density-assisted hopping on different dimerized lattice geometries, such as bilayers and ladder structures. We show analytically that the density-assisted hopping induces an attractive interaction in the lower (bonding) band of the dimer structure and a repulsion in the upper
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