Gravitational waves from smooth hybrid new infation

Abstract

We calculate the production of the gravitational waves from a double inflation model with lattice simulations. Between the two inflationary stages, gravitational waves with a characteristic frequency are produced by fluctuations of the scalar fields enhanced through parametric resonance. The wavelength of the produced gravitational waves gets extra redshift during the second inflationary stage and it can be in the observable range for the direct gravitational wave detectors. It is found that there is a possibility for the produced gravitational waves to be detected in the planned experiments.

23 pages, 6 figures

References in corpus (5)

• Planck 2013 results. XVI. Cosmological parameters
• Theory and Numerics of Gravitational Waves from Preheating after Inflation
• A Gravitational Wave Background from Reheating after Hybrid Inflation
• Nonlinear Inflaton Fragmentation after Preheating
• Power Spectrum of the Density Perturbations From Smooth Hybrid New Inflation Model

Cited by in corpus (4)

• On the estimation of gravitational wave spectrum from cosmic domain walls
• A review of gravitational waves from cosmic domain walls
• Gravitational Waves and Primordial Black Holes from Supersymmetric Hybrid Inflation
• No quasi-stable scalaron lump forms after $R^2$ inflation