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Towards an explicit model of large field inflation
Katholieke Univ Leuven, Inst Theoret Phys, B-3001 Leuven, Belgium.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics.
2018 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 5, article id 075Article in journal (Refereed) Published
Abstract [en]

The unwinding inflation mechanism is studied in a type IIB flux compactification where all moduli are stabilized using flux, non-perturbative effects, and the leading alpha' corrections of the large volume scenario. We consider the backreaction on the geometry due to the presence of anti-D3 branes as well as the backreaction of inflation on the Kahler moduli, and compute the resulting corrections to the slow-roll potential. By taking large flux numbers, we are able to find inflationary epochs where backreaction effects are under control, the inflaton traverses a super-Planckian field range, and the resulting amplitude of scalar perturbations is consistent with observation.

Place, publisher, year, edition, pages
2018. no 5, article id 075
Keywords [en]
Cosmology of Theories beyond the SM, Flux compactifications, D-branes
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-356871DOI: 10.1007/JHEP05(2018)075ISI: 000432056200002OAI: oai:DiVA.org:uu-356871DiVA, id: diva2:1237649
Funder
EU, Horizon 2020, 656491Available from: 2018-08-09 Created: 2018-08-09 Last updated: 2018-08-09Bibliographically approved

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