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Cosmological significance of one-loop effective gravity

D. Espriu·T. Multamaki·E. C. Vagenas
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Abstract

We study the one-loop effective action for gravity in a cosmological setup to determine possible cosmological effects of quantum corrections to Einstein theory. By considering the effect of the universal non-local terms in a toy model, we show that they can play an important role in the very early universe. We find that during inflation, the non-local terms are significant, leading to deviations from the standard inflationary expansion.

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D. Espriu, T. Multamaki, E. C. Vagenas. 2005-03-09. Cosmological significance of one-loop effective gravity. https://doi.org/10.1016/j.physletb.2005.09.033

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