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Journal Article

Refining the boundaries of the classical de Sitter landscape

MPS-Authors
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Andriot,  David
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

1609.00385.pdf
(Preprint), 342KB

JHEP03(2017)102.pdf
(Publisher version), 488KB

Supplementary Material (public)

JHEP03(2018)083.pdf
(Supplementary material), 119KB

Citation

Andriot, D., & Blåbäck, J. (2017). Refining the boundaries of the classical de Sitter landscape. Journal of high energy physics: JHEP, 2017(03): 102. doi:10.1007/JHEP03(2017)102.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002B-614A-9
Abstract
We derive highly constraining no-go theorems for classical de Sitter backgrounds of string theory, with parallel sources; this should impact the embedding of cosmological models. We study ten-dimensional vacua of type II supergravities with parallel and backreacted orientifold Op-planes and Dp-branes, on four-dimensional de Sitter space-time times a compact manifold. Vacua for p=3, 7 or 8 are completely excluded, and we obtain tight constraints for p=4, 5, 6. This is achieved through the derivation of an enlightening expression for the four-dimensional Ricci scalar. Further interesting expressions and no-go theorems are obtained. The paper is self-contained so technical aspects, including conventions, might be of more general interest.