Excursion into quantum gravity via inflation

Calmet, Xavier and Sanz, Verónica (2014) Excursion into quantum gravity via inflation. Physics Letters B, 737. pp. 12-15. ISSN 0370-2693

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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 λϕ4 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 Starobinsky-like models.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Depositing User: Xavier Calmet
Date Deposited: 18 Sep 2014 08:12
Last Modified: 18 Sep 2014 08:12
URI: http://sro.sussex.ac.uk/id/eprint/49961
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