Moduli and multi-field inflation

Abstract

Moduli with flat or run-away classical potentials are generic in theories based on supersymmetry and extra dimensions. They mix between themselves and with matter fields in kinetic terms and in the nonperturbative superpotentials. As the result, interesting structure appears in the scalar potential which helps to stabilise and trap moduli and leads to multi-field inflation. The new and attractive feature of multi-inflationary setup are isocurvature perturbations which can modify in an interesting way the final spectrum of primordial fluctuations resulting from inflation.

8 pages, 5 figures, based on talks given at CTP Symposium on Supersymmetry at LHC (Cairo, March 11-14 2007) and String Phenomenology 2007 (Frascati, June 4-8 2007)

References in corpus (7)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Kahler Moduli Inflation
• Curvature and isocurvature perturbations in two-field inflation
• Inflation model constraints from the Wilkinson Microwave Anisotropy Probe three-year data
• Roulette Inflation with Kähler Moduli and their Axions
• Racetrack inflation and assisted moduli stabilisation
• The Price of WMAP Inflation in Supergravity

Cited by in corpus (1)

• Constraints on scalar and tensor perturbations in phenomenological and two-field inflation models: Bayesian evidences for primordial isocurvature and tensor modes