Conveners
Cosmology IV
- Vedran Brdar
Presentation materials
Large excursion of the inflaton field can trigger interesting dynamics. One important example is a first-order phase transition in a spectator sector which couples to the inflaton. Gravitational waves (GWs) from such a first-order phase transition during inflation, an example of an instantaneous source, have an oscillatory feature. In this work, we show that this feature is generic for a...
Primordial black holes are produced in the early Universe by large curvature perturbations and can explain the dark matter abundance within current constraints. During their creation, gravitational waves are produced that could be measured by future gravitational wave detectors. These black holes will also produce a visible electromagnetic signature through Hawking radiation that may similarly...