2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/17180We examine critically the idea that fractional charges may carry electrical current in a conductor, much as do the normal electrons in a metallic Fermi liquid. We explore a range of issues that have gained the status of indispensability for analyzing conductance and shot noise in fractionally charged systems. For these fundamental transport problems, however, a truly microscopic understanding is not yet in sight.Presented at 24th Workshop on Condensed Matter Theories, Buenos Aires, 2000. Lgth. 10 pp; src. TeX; no figsMesoscale and Nanoscale PhysicsStrongly Correlated Electronstext