2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/16004We show that the metal to insulator transition, whether generated by decreasing the electron density or by increasing the spin alignment, is determined by a universal functional form of the two-electron correlation function g(r). This result provides direct evidence of the central role of the Coulomb repulsion and exchange in driving the metal-insulator transition.5 pages in ReVTeX, 2 encapsulated postscript figuresStrongly Correlated Electronstext