# De Sitter vacua in string theory

@article{Kachru2003DeSV, title={De Sitter vacua in string theory}, author={Shamit Kachru and Renata Kallosh and Andrei Linde and Sandip P. Trivedi}, journal={Physical Review D}, year={2003}, volume={68}, pages={046005} }

We outline the construction of metastable de Sitter vacua of type IIB string theory. Our starting point is highly warped IIB compactifications with nontrivial NS and RR three-form fluxes. By incorporating known corrections to the superpotential from Euclidean D-brane instantons or gaugino condensation, one can make models with all moduli fixed, yielding a supersymmetric AdS vacuum. Inclusion of a small number of {ovr D3} branes in the resulting warped geometry allows one to uplift the AdS…

## 2,859 Citations

de Sitter vacua in type IIB string theory: classical solutions and quantum corrections

- Physics
- 2014

A bstractWe revisit the classical theory of ten-dimensional two-derivative gravity coupled to fluxes, scalar fields, D-branes, anti D-branes and Orientifold-planes. We show that such set-ups do not…

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- Physics
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We propose a new mechanism for obtaining de Sitter vacua in type-IIB string theory compactified on (orientifolded) Calabi-Yau manifolds similar to those recently studied by Kachru, Kallosh, Linde and…

Lifetime of stringy de Sitter vacua

- Physics
- 2008

In this note we perform a synopsis of the life-times from vacuum decay of several de Sitter vacuum constructions in string/M-theory which have a single dS minimum arising from lifting a pre-existing…

On classical de Sitter vacua in string theory

- Physics
- 2010

We review the prospect of obtaining tree-level de Sitter (dS) vacua and slow-roll inflation models in string compactifications. Restricting ourselves to the closed string sector and assuming the…

2 de Sitter Vacua and anti-de Sitter Vacua in String Theory

- 2008

In [1], KKLT give a mechanism to generate de Sitter vacua in string theory. And the scenario, Landscape, is suggested to explain the problem of the cosmological constant. In this paper, adopting a…

de Sitter string vacua from Kahler uplifting

- Physics
- 2007

We present a new way to construct de Sitter vacua in type IIB flux compactifications, in which the interplay of the leading perturbative and non-perturbative effects stabilize all moduli in dS vacua…

Raising anti de Sitter vacua to de Sitter vacua in heterotic M theory

- Physics
- 2004

We explore the possibility of obtaining de Sitter vacua in strongly coupled heterotic models by adding various corrections to the supergravity potential energy. We show that, in a generic…

A global view on the search for de Sitter vacua in (Type IIA) string theory

- Physics
- 2012

A bstractThe search for classically stable Type IIA de Sitter vacua typically starts with an ansatz that gives Anti-de Sitter supersymmetric vacua and then raises the cosmological constant by…

Toward de Sitter space from ten dimensions

- Physics
- 2018

Using a 10D lift of non-perturbative volume stabilization in type IIB string theory we study the limitations for obtaining de Sitter vacua. Based on this we find that the simplest KKLT vacua with a…

Constraints on Meta-stable de Sitter Flux Vacua

- Physics
- 2007

We consider flux compactification of type IIB string theory as the orientifold limit of an F-theory on a Calabi-Yau fourfold. We show that when supersymmetry is dominantly broken by the axion-dilaton…

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