Antoniadis, Ignatios; Chen, Yifan; Leontaris, George K. (2020). Logarithmic loop corrections, moduli stabilisation and de Sitter vacua in string theory. Journal of High Energy Physics, 2020(1), p. 149. Springer 10.1007/JHEP01(2020)149
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We study string loop corrections to the gravity kinetic terms in type IIB com- pactifications on Calabi-Yau threefolds or their orbifold limits, in the presence of D7-branes and orientifold planes. We show that they exhibit in general a logarithmic behaviour in the large volume limit transverse to the D7-branes, induced by a localised four-dimensional Einstein-Hilbert action that appears at a lower order in the closed string sector, found in the past. Here, we compute the coefficient of the logarithmic corrections and use them to provide an explicit realisation of a mechanism for K ̈ahler moduli stabilisation that we have proposed recently, which does not rely on non-perturbative effects and lead to de Sit- ter vacua. Our result avoids no-go theorems of perturbative stabilisation due to runaway potentials, in a way similar to the Coleman-Weinberg mechanism, and provides a counter example to one of the swampland conjectures concerning de Sitter vacua in quantum grav- ity, once string loop effects are taken into account; it thus paves the way for embedding the Standard Model of particle physics and cosmology in string theory.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Antoniadis, Ignatios |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1029-8479 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
31 Jan 2020 13:28 |
Last Modified: |
05 Dec 2022 15:36 |
Publisher DOI: |
10.1007/JHEP01(2020)149 |
ArXiv ID: |
1909.10525 |
BORIS DOI: |
10.7892/boris.139624 |
URI: |
https://boris.unibe.ch/id/eprint/139624 |