2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50207These are introductory lectures on the correspondence between SU(N) gauge theories and Superstring Theory in anti-de Sitter geometries (AdS). The subject combines a number of different topics, including supersymmetric field theory, classical and quantum physics of black holes, string theory, string dualities, conformal field theories (CFT), and quantum field theory in anti-de Sitter spaces. We also discuss applications of this AdS/CFT correspondence to the large $N$ dynamics of pure QCD.latex, 27 pages. Lectures at SILAFAE III, Cartagena, Colombia (april 2000)High Energy Physics - Theorytext