2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/51953We consider a scalar field interacting with a quantized metric varying on a submanifold (e.g. a scalar field interacting with a quantized gravitational wave). We explicitly sum up the perturbation series for the time-ordered vacuum expectation values of the scalar field. As a result we obtain a modified non-canonical short distance behavior.Latex, 14 pagesHigh Energy Physics - Theorytext