2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/95899We briefly review the physics of electronic phases in low dimensional conductors. We begin by introducing the properties of the one-dimensional electron gas model using bosonization and renormalization group methods.We then tackle the influence of interchain coupling and go through the different instabilities of the electron system to the formation of higher dimensional states. The connection with observations made in quasi-one-dimensional organic and inorganic conductors is discussed.LateX, 37 pages, 12 figures, Springer-Verlag macros. Proceedings of the Int. summer school on High Magnetic Fields: Application in Condensed Matter Physics and Spectroscopy, Cargese, May 2001, C. Berthier, L.P. Levy and G. Martinez, Editors, To be pubished by Springer, 2002Strongly Correlated ElectronsSuperconductivitytext