2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/135643The density driven Mott transition is studied by means of Dynamical Mean-Field Theory in the Hubbard-Holstein model, where the Hubbard term leading to the Mott transition is supplemented by an electron-phonon (e-ph) term. We show that an intermediate e-ph coupling leads to a first-order transition at T=0, which is accompanied by phase separation between a metal and an insulator. The compressibility in the metallic phase is substantially enhanced. At quite larger values of the coupling a polaronic phase emerges coexisting with a non-polaronic metal.4 pages, 3 figures. Slightly revised text. More details in Fig.1 and 2. Smaller size version of Fig.3Strongly Correlated Electronstext