2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/16521The supersymmetry method has proven to be a very powerful tool of study of the statistical properties of energy levels and eigenfunctions in disordered and chaotic systems. The aim of these lectures is to present a tutorial introduction to the method, as well as an overview of the recent developments.Lecture course given at the International School "Enrico Fermi" on New Directions in Quantum Chaos (Varenna, July 1999), 76 pagesDisordered Systems and Neural NetworksMesoscale and Nanoscale PhysicsStatistics of energy levels and eigenfunctions in disordered and chaotic systems: Supersymmetry approachtext