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Deriving the inflaton in compactified M-theory with a de Sitter vacuum
Stockholm Univ, Oskar Klein Ctr Cosmoparticle Phys, Dept Phys, S-10691 Stockholm, Sweden.
Number of Authors: 22019 (English)In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 6, article id 066005Article in journal (Refereed) Published
Abstract [en]

Compactifying M-theory on a manifold of G(2) holonomy gives a UV complete 4D theory. It is supersymmetric, with soft supersymmetry breaking via gaugino condensation that simultaneously stabilizes all moduli and generates a hierarchy between the Planck and the Fermi scale. It generically has gauge matter, chiral fermions, and several other important features of our world. Here we show that the theory also contains a successful inflaton, which is a linear combination of moduli closely aligned with the overall volume modulus of the compactified G(2) manifold. The scheme does not rely on ad hoc assumptions, but derives from an effective quantum theory of gravity. Inflation arises near an inflection point in the potential which can be deformed into a local minimum. This implies that a de Sitter vacuum can occur in the moduli potential even without uplifting. Generically present charged hidden sector matter generates a de Sitter vacuum as well.

Place, publisher, year, edition, pages
2019. Vol. 100, no 6, article id 066005
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-174879DOI: 10.1103/PhysRevD.100.066005ISI: 000483806500010OAI: oai:DiVA.org:su-174879DiVA, id: diva2:1360548
Available from: 2019-10-14 Created: 2019-10-14 Last updated: 2019-10-14Bibliographically approved

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Winkler, Martin Wolfgang
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