Photon corrections to the graviton propagator

The one-loop photon contribution to the graviton self-energy is calculated using the technique of dimensional regularization and the resulting amplitude is found to satisfy the appropriate Slavnov-Ward identities. The infinite part can be removed by counterterms of the form $\sqrt{g}({R}^{2}\ensuremath{-}3{R}_{\ensuremath{\mu}\ensuremath{\nu}}{R}^{\ensuremath{\mu}\ensuremath{\nu}})$ and the finite part is compared with the previously derived graviton-loop contribution.