Attraction towards an inflection point inflation

Abstract

Many models of high energy physics possess metastable vacua. It is conceivable that the universe can get trapped in such a false vacuum, irrespective of its origin and prior history, at an earlier stage during its evolution. The ensuing false vacuum inflation results in a cold and empty universe and has a generic graceful exit problem. We show that an inflection point inflation along the flat directions of the Minimal Supersymmetric Standard Model (MSSM) can resolve this graceful exit problem by inflating the bubble which nucleate out of a false vacuum. The important point is that the initial condition for an MSSM inflation can be naturally realized, due to an attractor behavior towards the inflection point. We investigate these issues in detail and also present an example where metastable vacua, hence the false vacuum inflation, can happen within the MSSM.

9 pages, 7 figures

References in corpus (5)

• Unifying inflation and dark matter with neutrino masses
• Seed perturbations for primordial magnetic fields from MSSM flat directions
• Probing the parameter space for an MSSM inflation and the neutralino dark matter
• Graceful exit from a stringy landscape via MSSM inflation
• Affleck-Dine condensate, late thermalization and the gravitino problem

Cited by in corpus (5)

• Inflation with a Negative Cosmological Constant
• On the Suppression of Parametric Resonance and the Viability of Tachyonic Preheating after Multi-Field Inflation
• Multi-Field Inflation on the Landscape
• A Phase Transition between Small and Large Field Models of Inflation
• Inflation and The Minimal Supersymmetric Standard Model