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arXiv · 2105.12577

Gravitational corrections to two-loop beta function in quantum electrodynamics

L. Ibiapina Bevilaqua·M. Dias·A. C. Lehum·C. R. Senise Jr.·A. J. da Silva·Huan Souza
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Abstract

In this work, we use the framework of effective field theory to couple Einstein's gravity to quantum electrodynamics (QED) and determine the gravitational corrections to the two-loop beta function of the electric charge in arbitrary electrodynamics (Lorentz-like) and arbitrary (de Donder like) gravitational gauges. Our results indicate that gravitational corrections do not alter the running behavior of the electric charge; on the contrary, we observe that it gives a positive contribution to the beta function, making the electric charge grow even faster.

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L. Ibiapina Bevilaqua, M. Dias, A. C. Lehum, C. R. Senise Jr., A. J. da Silva, Huan Souza. 2021-11-19. Gravitational corrections to two-loop beta function in quantum electrodynamics. https://doi.org/10.1103/physrevd.104.125001

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