2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/112367A local quantum bosonic model on a lattice is constructed whose low energy excitations are gravitons described by linearized Einstein action. Thus the bosonic model is a quantum theory of gravity, at least at the linear level. We find that the compactification and the discretization of metric tenor are crucial in obtaining a quantum theory of gravity.4 pages. RevTeX4. Homepage http://dao.mit.edu/~wenGeneral Relativity and Quantum CosmologyStrongly Correlated ElectronsHigh Energy Physics - Theorytext