An effective action for asymptotically safe gravity

Details An effective action for asymptotically safe gravity An effective action for asymptotically safe gravity

2012-03-08

arxiv.org/abs/1203.1962v1

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, to appear as a Rapid Communication in Physical Review D

Scientific paper

Asymptotically safe theories of gravitation have received great attention in recent times. In this framework an effective action embodying the basic features of the renormalized flow around the non-gaussian fixed point is derived and its implications for the early universe are discussed. In particular, a "landscape" of a countably infinite number of cosmological inflationary solutions characterized by an unstable de Sitter phase lasting for a large enough number of e-folds is found.

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