Cosmological significance of one-loop effective gravity

Details Cosmological significance of one-loop effective gravity Cosmological significance of one-loop effective gravity

2005-03-09

arxiv.org/abs/gr-qc/0503033v1

Phys.Lett. B628 (2005) 197-205

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages (REVTeX)

Scientific paper

10.1016/j.physletb.2005.09.033

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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