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Quantum gravitational contributions to the beta function of quantum electrodynamics |
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| Authors: | J.C.C. Felipe L.C.T. Brito Marcos Sampaio M.C. Nemes |
| Affiliation: | 1. Universidade Federal de Minas Gerais, Departamento de Física, ICEx, P.O. Box 702, 30.161-970, Belo Horizonte MG, Brazil;2. Universidade Federal de Lavras, Departamento de Ciências Exatas, P.O. Box 3037, 37.200-000, Lavras MG, Brazil |
| Abstract: | We show in a diagrammatic and regularization independent analysis that the quadratic contribution to the beta function which has been conjectured to render quantum electrodynamics asymptotically free near the Planck scale has its origin in a surface term. Such surface term is intrinsically arbitrarily valued and it is argued to vanish in a consistent treatment of the model. |
| Keywords: | Quantum gravity Renormalization Gauge fields theories Asymptotic freedom |
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