Domain Walls and Gravitational Waves after Thermal Inflation

Abstract

Thermal inflation is an attractive solution to the cosmological moduli problem. However, domain walls may be formed after thermal inflation and some mechanisms are needed to eliminate the domain wall before it dominates the Universe. We point out that gravitational waves produced by the dynamics of domain walls may be observed by the pulsar timing experiments and future space-borne gravitational wave detectors, which provides a probe into the period of thermal inflation. We also show that the QCD instanton effect can effectively eliminate the domain walls with producing observable amount of gravitational waves.

17 pages, 2 figures

References in corpus (14)

• Big-Bang Nucleosynthesis and Gravitino
• Moduli-Induced Gravitino Problem
• Moduli Decays and Gravitinos
• Moduli/Inflaton Mixing with Supersymmetry Breaking Field
• The Relic Abundance of Long-lived Heavy Colored Particles
• Cosmic Strings from Supersymmetric Flat Directions
• Thermal inflation, baryogenesis and axions
• Effect of Long-lived Strongly Interacting Relic Particles on Big Bang Nucleosynthesis
• Thermal Inflation and the Gravitational Wave Background
• Low-Scale Leptogenesis and the Domain Wall Problem in Models with Discrete Flavor Symmetries
• Gravitational Waves as a Probe of the Gravitino Mass
• Late-time Affleck-Dine baryogenesis after thermal inflation
• Destruction of 7Be in big bang nucleosynthesis via long-lived sub-strongly interacting massive particles as a solution to the Li problem
• A simple model for particle physics and cosmology

Cited by in corpus (14)

• Cosmological Backgrounds of Gravitational Waves and eLISA/NGO: Phase Transitions, Cosmic Strings and Other Sources
• On the estimation of gravitational wave spectrum from cosmic domain walls
• A review of gravitational waves from cosmic domain walls
• Axion cosmology with long-lived domain walls
• The hybrid inflation waterfall and the primordial curvature perturbation
• Gravitational waves from domain walls and their implications
• Peccei-Quinn extended gauge-mediation model with vector-like matter
• NMSSM in gauge-mediated SUSY breaking without domain wall problem
• Gravitational waves from Higgs domain walls
• Cosmological moduli problem in large volume scenario and thermal inflation
• Testing Unification and Dark Matter with Gravitational Waves
• Neutrino phenomenology in the flavored NMSSM without domain wall problems
• Anomalous Discrete Flavor Symmetry and Domain Wall Problem
• Cosmological constraints on spontaneous R-symmetry breaking models