Speaker
Peera Simakachorn
(UNI/TH (Uni Hamburg, Institut fuer Theoretische Physik))
Description
A fast-spinning axion can dominate the Universe at early times and generates the so-called kination era. The presence of kination imprints a smoking-gun spectral enhancement in the primordial gravitational wave (GW) background. Current and future-planned GW observatories could constrain particle theories that generate the kination phase. Surprisingly, the viable parameter space allows for a kination era at the PeV-EeV scale and generates a peaked spectrum of GW from either cosmic strings or primordial inflation, which lies inside ET and CE windows.
| Do you wish to attend the workshop on-site? | yes |
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Primary authors
Peera Simakachorn
(UNI/TH (Uni Hamburg, Institut fuer Theoretische Physik))
Geraldine Servant
(T (Cosmology))
Yann Gouttenoire
(not set)
