Journal
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
Volume 23, Issue 1, Pages 143-150Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217751X08038135
Keywords
asymptotic safety; renormalization group of gravity; f(R)-gravity
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We discuss the existence and properties of a nontrivial fixed point in f(R)- gravity, where f is a polynomial of order up to six. Within this seven-parameter class of theories, the fixed point has three ultraviolet-attractive and four ultraviolet-repulsive directions; this brings further support to the hypothesis that gravity is nonperturbatively renormalizable.
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