2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/57316Freedman proposes a family of Hamiltonians $H_{0,l}$ which define quantum loop gas models on any celluated compact surface. We study the simplest nontrivial cases: celluations of the torus. Our numerical data support Freedman's conjecture, but the conjectured space of ground states does not come out in full.Mathematical PhysicsGeometric Topology57M20On Freedman's lattice models for topological phasestext