Inflation in S-Dual Superstring Models

Abstract

We study inflationary potentials in the framework of superstring theories. Successful inflation may occur due to chiral fields, but only after the dilaton and moduli are stabilized. This is achieved by demanding an S-duality invariant potential. Then, it is possible to have inflation at any scale and even to have more than one stages of inflation. This occurs for a limited class of scalar potentials, where certain conditions are obeyed. Density fluctuations of $10^{-5}$ require the inflationary potential to be at a scale of $V^{1/4}\simeq 5\times 10^{15}$ GeV.

10 pages LaTeX, no figures

Cited by in corpus (15)

• Particle Physics Models of Inflation and the Cosmological Density Perturbation
• Encyclopaedia Inflationaris
• What would we learn by detecting a gravitational wave signal in the cosmic microwave background anisotropy?
• The Best Inflationary Models After Planck
• More varieties of hybrid inflation
• Modelling Inflation with a Power-law Approach to the Inflationary Plateau
• Minimal plateau inflationary cosmologies and constraints from reheating
• Shaft Inflation
• Modular Quantum Cosmology
• Inflationary Dynamics in Einstein-Gauss-Bonnet Gravity Using New Slow-Roll Approximations considering Generalised Reheating
• Primordial Density Fluctuations in a Dual Supergravity Cosmology
• Lorentz violating inflation and the Swampland
• Exact inflationary solutions
• Dualities, CPT Symmetry and Dimensional Reduction in String Theory
• Shaft inflation in Randall-Sundrum model