Erlangen 2026 – wissenschaftliches Programm
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GR: Fachverband Gravitation, Relativistische Astrophysik und Kosmologie
GR 17: Cosmology II
GR 17.3: Vortrag
Freitag, 20. März 2026, 09:45–10:00, KH 01.016
Comparing Gravitational Wave Spectra of Inflation Models — •Alexander Schneider1, Tom Krokotsch1, Gudrid Moortgat-Pick1, 2, and Andreas Ringwald2 — 1University of Hamburg, Hamburg, Germany — 2Desy, Hamburg Germany
Inflation is currently among the most favored explanations for the horizon and the flatness problem, and there are several plausible models.
Many of them are predicted to have produced a gravitational wave background, the measurement of which could be a direct way of probing inflation.
In this talk, we present simulations of two inflation models and subsequent reheating processes with a focus on their respective gravitational wave spectra. Among the questions discussed are the prospects to measure the primordial gravitational wave backgrounds from these processes today, and how such a measurement could be used to differentiate between models.
Keywords: Inflation; Preheating; Gravitational Waves