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Excursion into quantum gravity via inflation

journal contribution
posted on 2023-06-08, 18:19 authored by Xavier CalmetXavier Calmet, Veronica Sanz
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 ??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 Starobinsky-like models.

History

Publication status

  • Published

Journal

Physics Letters B

ISSN

0370-2693

Publisher

Elsevier

Volume

737

Page range

12-15

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2014-09-18

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