2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/53464We show that some models with non-local (and non-localizable) interactions have a property, called quasi-locality, which allows for the definition of a transfer matrix. We give the Yang-Baxter equation as a sufficient condition for the existence of a family of commuting transfer matrices and solve them for a loop model with intersections. This solvable model is then analyzed in some detail and its applications to a Lorentz gas are briefly discussed.9 pages LaTex, uses epsf.styHigh Energy Physics - Theorytext