2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/167164We show, in a completely analytical way, that a tight binding ladder network composed of atomic sites with on-site potentials distributed according to the quasiperiodic Aubry model can exhibit a metal-insulator transition at multiple values of the Fermi energy. For specific values of the first and second neighbor electron hopping, the result is obtained exactly. With a more general model, we calculate the two-terminal conductance numerically. The numerical results corroborate the analytical findings and yield a richer variety of spectrum showing multiple mobility edges.4 pages, 3 figuresMesoscale and Nanoscale PhysicsMetal-insulator transition in an aperiodic ladder network: an exact resulttext