An effective action for asymptotically safe gravity

Alfio Bonanno

doi:10.1103/physrevd.85.081503

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arXiv · 1203.1962

An effective action for asymptotically safe gravity

Alfio Bonanno

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Abstract

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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Alfio Bonanno. 2012-03-08. An effective action for asymptotically safe gravity. https://doi.org/10.1103/physrevd.85.081503

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