Ruiz Cembranos, José AlbertoComa Díaz, MarioMartín Moruno, María Del Prado2023-06-172023-06-172018-10-250264-938110.1088/1361-6382/aae1d9https://hdl.handle.net/20.500.14352/12982© 2018 IOP Publishing Ltd. We thank Douglas Singleton for useful comments. This work is supported by the project FIS2016-78859-P (AEI/FEDER, UE). PMM gratefully acknowledges financial support provided through the Research Award L’Oréal-UNESCO FWIS (XII Spanish edition).In this paper we investigate graviton-photon oscillation in the presence of an external magnetic field in alternative theories of gravity. Whereas the effect of an effective refractive index for the electromagnetic radiation was already considered in the literature, we develop the first approach to take into account the effect of the modification of the predictions for gravitational waves in alternative theories of gravity in the phenomenon of graviton-photon mixing.engjournal articlehttp://dx.doi.org/10.1088/1361-6382/aae1d9http://iopscience.iop.orghttps://arxiv.org/abs/1806.11020open access53Gravitational-wavesField-equationsInflationFísica-Modelos matemáticos