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arXiv · 0708.2990

Quantum gravity and charge renormalization

David J. Toms
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Abstract

We study the question of the gauge dependence of the quantum gravity contribution to the running gauge coupling constant for electromagnetism. The calculations are performed using dimensional regularization in a manifestly gauge invariant and gauge condition independent formulation of the effective action. It is shown that there is no quantum gravity contribution to the running charge, and hence there is no alteration to asymptotic freedom at high energies as predicted by Robinson and Wilczek.

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David J. Toms. 2007-08-22. Quantum gravity and charge renormalization. https://doi.org/10.1103/physrevd.76.045015

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