3 papers
astro-ph.CO2026
Large deviations for halos and voids: beyond perturbative non-gaussianities
Martin Teuscher, Ruth Durrer, Julien Grain +2
The excursion-set formalism provides a key connection between primordial density fluctuations and the abundance of cosmic structures such as dark matter halos and voids, traditiona…
astro-ph.CO2025
A universal scaling law for gravitational waves induced during inflation
Martin Teuscher, Ruth Durrer, Killian Martineau +1
We consider the stochastic gravitational wave background induced by arbitrary source fields that are amplified during cosmological inflation. The associated tensor spectral index i…
astro-ph.CO2025
Gravitational Waves sourced by Gauge Fields during Inflation
Martin Teuscher, Ruth Durrer, Killian Martineau +1
We study the inflationary gravitational wave background induced by Abelian gauge fields generated by non-minimal kinetic and axial couplings to the inflaton. We show that, up to sl…