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arXiv · 1403.5100

Excursion into Quantum Gravity via Inflation

Xavier Calmet·Veronica Sanz
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Abstract

The discovery of B-modes, and their effect on the fit to inflationary parameters, opens a window to explore quantum gravity. In this paper we adopt an effective theory approach to study quantum gravity effects in inflation. We apply this approach to chaotic and $ϕ^4$ inflation, and find that BICEP2 constrains these new operators to values which are consistent with the effective theory approach. This result opens the possibility to study quantum gravity in a systematic fashion, including its effect on Higgs inflation and other Starobisnky-like models.

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Xavier Calmet, Veronica Sanz. 2014-03-20. Excursion into Quantum Gravity via Inflation. https://doi.org/10.1016/j.physletb.2014.08.022

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