Dilaton Stabilization in (A)dS Spacetime with Compactified Dimensions
arXiv:hep-th/0308170 · doi:10.1143/PTP.110.457
Abstract
We investigate dilaton stabilization in a higher-dimensional theory. The background geometry is based on an eleven-dimensional Kaluza-Klein/supergravity model, which is assumed to be a product of four-dimensional de Sitter (dS_4) spacetime and a seven sphere. The dilaton potential has a local minimum resulting from contributions of the cosmological constant, the curvature of the internal spacetime and quantum effects of the background scalar, vector, spinor, and tensor fields. The dilaton settles down to the local minimum, and the scale of the extra dimensions eventually become time independent. Our four-dimensional universe evolves from dS_4 into AdS_4 after stabilization of the extra dimension.
43 pages, 12 figures, PTPTeX. Accepted for publication in Progress of Theoretical Physics
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- Warped de Sitter compactifications
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- Quantum vacuum effects in braneworlds on AdS bulk
- Constraints on warped compactifications
- Vacuum densities and the Casimir forces for branes orthogonal to the AdS boundary
- Moduli Stabilization in a de Sitter Compactification Model
- Warped de Sitter compactifications in the scalar-tensor theory
- Fermionic Casimir effect in de Sitter spacetime
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