2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/23317We calculate the conductance of atomic chains as a function of their length. Using the Density Matrix Renormalization Group algorithm for a many-body model which takes into account electron-electron interactions and the shape of the contacts between the chain and the leads, we show that length-dependent oscillations of the conductance whose period depends on the electron density in the chain can result from electron-electron scattering alone. The amplitude of these oscillations can increase with the length of the chain, in contrast to the result from approaches which neglect the interactions.7 pages, 4 figuresMesoscale and Nanoscale PhysicsStrongly Correlated Electronstext