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Constructing stable de Sitter in M-theory from higher curvature corrections
Univ Roma Tor Vergata, Dipartimento Fis, Via Ric Sci 1, I-00133 Rome, Italy;Univ Roma Tor Vergata, Sez INFN, Via Ric Sci 1, I-00133 Rome, Italy.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics.ORCID iD: 0000-0003-0422-7010
2019 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 9, article id 042Article in journal (Refereed) Published
Abstract [en]

We consider dimensional reductions of M-theory on T-7/Z(2)(3) with the inclusion of arbitrary metric flux and spacetime filling KK monopoles. With these ingredients at hand, we are able to construct a novel family of non-supersymmetric yet tachyon free Minkowski extrema. These solutions are supported by pure geometry with no extra need for gauge fluxes and possess a fully stable perturbative mass spectrum, up to a single flat direction. Such a direction corresponds to the overall internal volume, with respect to which the scalar potential exhibits a no-scale behavior. We then provide a mechanism that lifts the flat direction to give it a positive squared mass while turning Mkw(4) into dS(4). The construction makes use of the combined effect of G(7) flux and higher curvature corrections. Our solution is scale separated and the quantum corrections are small. Finally we speculate on novel possibilities when it comes to scale hierarchies within a given construction of this type, and possible issues with the choice of quantum vacuum.

Place, publisher, year, edition, pages
SPRINGER , 2019. no 9, article id 042
Keywords [en]
Flux compactifications, M-Theory
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Other Physics Topics
Identifiers
URN: urn:nbn:se:uu:diva-396631DOI: 10.1007/JHEP09(2019)042ISI: 000489133700001OAI: oai:DiVA.org:uu-396631DiVA, id: diva2:1368707
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Swedish Research CouncilAvailable from: 2019-11-08 Created: 2019-11-08 Last updated: 2019-11-08Bibliographically approved

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Danielsson, UlfDibitetto, GiuseppeGiri, Suvendu

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