2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/52743We introduce the notion of background independent quantum field theory. The distinguishing feature of this theory is that the dynamics can be formulated without recourse to a background metric structure. We show in a simple model how the metric properties of spacetime can be recovered from the dynamics. Background independence is not only conceptually desirable but allows for the resolution of a problem haunting ordinary quantum field theory: the cosmological constant problem.4 pages, 1 figure, included changes due to referee comments, added acknowledgmentHigh Energy Physics - TheoryOther Condensed MatterGeneral Relativity and Quantum Cosmologytext