Racetrack inflation and assisted moduli stabilisation

Abstract

We present a model of inflation based on a racetrack model without flux stabilization. The initial conditions are set automatically through topological inflation. This ensures that the dilaton is not swept to weak coupling through either thermal effects or fast roll. Including the effect of non-dilaton fields we find that moduli provide natural candidates for the inflaton. The resulting potential generates slow-roll inflation without the need to fine tune parameters. The energy scale of inflation must be near the GUT scale and the scalar density perturbation generated has a spectrum consistent with WMAP data.

17 pages, 6 figures (Latex); Error in v.1 eliminated and improved example of modular inflation presented

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• Astrophysical and Cosmological Implications of Large Volume String Compactifications
• Volume Modulus Inflation and the Gravitino Mass Problem
• Constraints on modular inflation in supergravity and string theory
• Instant Preheating in Quintessential Inflation with $\alpha$-Attractors
• Accidental Inflation in String Theory
• Chasing Brane Inflation in String-Theory
• Minimal Inflation
• Non-standard primordial fluctuations and nongaussianity in string inflation
• A Minimal Inflation Scenario
• Eternal Inflation with alpha'-Corrections
• Volume modulus inflation and a low scale of SUSY breaking
• LARGE Volume String Compactifications at Finite Temperature
• Palatini $R^2$ Quintessential Inflation
• Kahler Moduli Inflation Revisited
• Warped Tachyonic Inflation in Type IIB Flux Compactifications and the Open-String Completeness Conjecture
• Volume modulus inflection point inflation and the gravitino mass problem
• Wilson Line Inflation
• Assisted coupled quintessence
• A New Mechanism of Kahler Moduli Stabilization in Type IIB Theory
• F-term uplifting via consistent D-terms
• Accidental Inflation in the Landscape
• The Price of WMAP Inflation in Supergravity
• Single-Field Inflation After WMAP5
• Racing through the swampland: de Sitter uplift vs weak gravity
• Inflation with racetrack superpotential and matter field
• Natural Inflation with Natural Trans-Planckian Axion Decay Constant from Anomalous $U(1{)}_X$
• Moduli evolution in the presence of thermal corrections
• Low-scale Inflation and Supersymmetry Breaking in Racetrack Models
• Aligned Natural Inflation and Moduli Stabilization from Anomalous $U(1)$ Gauge Symmetries
• Non-perturbative moduli superpotential with positive exponents
• Evidence for Inflation in an Axion Landscape
• Moduli and multi-field inflation
• Kination cosmology from scalar fields and gravitational-wave signatures
• Moduli fixing in semirealistic string compactifications