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Mass production of type IIA dS vacua
- Source :
- Journal of High Energy Physics, Vol 2020, Iss 1, Pp 1-29 (2020), Journal of High Energy Physics
- Publication Year :
- 2020
- Publisher :
- SpringerOpen, 2020.
-
Abstract
- A three-step procedure is proposed in type IIA string theory to stabilize multiple moduli in a dS vacuum. The first step is to construct a progenitor model with a localized stable supersymmetric Minkowski vacuum, or a discrete set of such vacua. It can be done, for example, using two non-perturbative exponents in the superpotential for each modulus, as in the KL model. A large set of supersymmetric Minkowski vacua with strongly stabilized moduli is protected by a theorem on stability of these vacua in absence of flat directions. The second step involves a parametrically small downshift to a supersymmetric AdS vacuum, which can be achieved by a small change of the superpotential. The third step is an uplift to a dS vacuum with a positive cosmological constant using the $\overline {D6}$-brane contribution. Stability of the resulting dS vacuum is inherited from the stability of the original supersymmetric Minkowski vacuum if the supersymmetry breaking in dS vacuum is parametrically small.<br />Comment: 30 pages, 3 figs. A section on string theory embedding of the new models is added, as well as some comments in Conclusions. This is the version matching the one to appear in JHEP
- Subjects :
- High Energy Physics - Theory
Nuclear and High Energy Physics
Superstring Vacua
FOS: Physical sciences
Cosmological constant
General Relativity and Quantum Cosmology (gr-qc)
Type (model theory)
String theory
01 natural sciences
General Relativity and Quantum Cosmology
Moduli
High Energy Physics::Theory
High Energy Physics - Phenomenology (hep-ph)
0103 physical sciences
Minkowski space
lcsh:Nuclear and particle physics. Atomic energy. Radioactivity
010306 general physics
Mathematical Physics
Mathematical physics
Physics
010308 nuclear & particles physics
Superpotential
High Energy Physics::Phenomenology
Mathematical Physics (math-ph)
Supersymmetry breaking
High Energy Physics - Phenomenology
High Energy Physics - Theory (hep-th)
Large set (Ramsey theory)
D-branes
lcsh:QC770-798
Supergravity Models
Subjects
Details
- Language :
- English
- ISSN :
- 10298479
- Volume :
- 2020
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Journal of High Energy Physics
- Accession number :
- edsair.doi.dedup.....7e61bda2b2976bd7f1fa4f30e5f33ef9