Relaxing the Cosmological Moduli Problem

Abstract

Typically the moduli fields acquire mass m =C H in the early universe, which shifts the position of the minimum of their effective potential and leads to an excessively large energy density of the oscillating moduli fields at the later stages of the evolution of the universe. This constitutes the cosmological moduli problem, or Polonyi field problem. We show that the cosmological moduli problem can be solved or at least significantly relaxed in the theories in which C >> 1, as well as in some models with C << 1.

9 pages, 3 Postscript figures

References in corpus (5)

• Baryogenesis from Flat Directions of the Supersymmetric Standard Model
• Thermal Inflation and the Moduli Problem
• Non-Thermal Phase Transitions after Inflation
• Constraint on the Reheating Temperature from the Decay of the Polonyi Field
• Successful Supersymmetric Inflation

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