de Sitter vacua in string theory (original) (raw)

ADS

;

• Kallosh, Renata ;
• Linde, Andrei ;
• Trivedi, Sandip P.

Abstract

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 D3̄-branes in the resulting warped geometry allows one to uplift the AdS minimum and make it a metastable de Sitter ground state. The lifetime of our metastable de Sitter vacua is much greater than the cosmological time scale of 1010 yr. We also prove, under certain conditions, that the lifetime of dS space in string theory will always be shorter than the recurrence time.

Publication:

Physical Review D

Pub Date:

August 2003

DOI:

10.1103/PhysRevD.68.046005

10.48550/arXiv.hep-th/0301240

arXiv:

arXiv:hep-th/0301240

Bibcode:

2003PhRvD..68d6005K

Keywords:

• 11.25.Yb;
• 98.80.-k;
• M theory;
• Cosmology;
• High Energy Physics - Theory;
• Astrophysics;
• General Relativity and Quantum Cosmology;
• High Energy Physics - Phenomenology

E-Print:

12 pages, 2 figs, added comments on the thin wall approximation to tunneling