Gravitational Waves from Incomplete Inflationary Phase Transitions
arXiv:2203.00693 · doi:10.1103/PhysRevD.108.115016
Abstract
We study the observable implications of an incomplete first order phase transition during inflation. In such a phase transition, the nucleated bubbles do not percolate and instead are continuously produced until the onset of reheating. The process creates an inhomogeneity with a distinct power spectrum that depends on both the physics of the phase transition and the inflationary dynamics. Upon horizon re-entry, this spectrum generates gravitational waves through non-linear effects. This stochastic gravitational wave background is predicted to have unique signatures that may be detectable by future experiments spanning a wide frequency range. The discovery of such a gravitational wave signal would shed a light on the detailed dynamics of inflation.
12 pages, 4 figures
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- The Detected Stochastic Gravitational Waves and Subsolar-Mass Primordial Black Holes
- Using Gravitational Wave Signals to Disentangle Early Matter Dominated Epochs
- Gravitational waves from a curvature-induced phase transition of a Higgs-portal dark matter sector
- Gauss-Bonnet-induced symmetry breaking/restoration during inflation