2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/113738It is argued that string theory predicts unified field theory rather than general relativity coupled to matter fields. In unified field theory all the objects are geometrical, for strings the Kalb-Ramond matter field is identical to the asymmetric part of the metric except that the fields contribute to different sides of the field equations. The dilaton is related to the object of non-metricity.9 references added, one removedHigh Energy Physics - TheoryGeneral Relativity and Quantum CosmologyStrings and Unified Field Theorytext