Higher Derivative Gravity from the Universal Renormalization Group Machine

Details Higher Derivative Gravity from the Universal Renormalization Group Machine Higher Derivative Gravity from the Universal Renormalization Group Machine

2011-11-07

arxiv.org/abs/1111.1743v2

PoS(EPS-HEP2011)124

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, published version

Scientific paper

We study the renormalization group flow of higher derivative gravity, utilizing the functional renormalization group equation for the average action. Employing a recently proposed algorithm, termed the universal renormalization group machine, for solving the flow equation, all the universal features of the one-loop beta-functions are recovered. While the universal part of the beta-functions admits two fixed points, we explicitly show that the existence of one of them depends on the choice of regularization scheme, indicating that it is most probably unphysical.

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