2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/177544We compare eigenvalue correlations of the Dirac operator with a chemical potential obtained from lattice simulations of quenched QCD with analytic predictions obtained from chiral effective theories in the zero-momentum limit. By comparing the density and two-point correlation function we show that the analytic results agree with QCD at low energies. We also examine the scale (Thouless energy) up to which the zero-momentum approximation is valid.6 pages, 12 figures, talk given at Lattice 2005High Energy Physics - Latticetext