activity
20122026
most citedGeneration of helical magnetic fields from inflation

27 citations · 55 across the 6 of their papers we have counts for

collaborators

7 papers

gr-qc2026

Clarifications on black/white hole metastable relics as dark matter

Aurélien Barrau, Margaux Gajocha, Killian Martineau +3

The idea that the evaporation of black holes could end around the Planck mass and lead to relics possibly accounting for dark matter is quite old. In this article we focus on new m…

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★ 4 cited

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…

astro-ph.CO2025

Are magnetic fields in cosmic voids primordial?

Deepen Garg, Ruth Durrer, Jennifer Schober

The nature of magnetic fields in the voids of the large-scale structure of the Universe has been a multifaceted open puzzle for decades. On one hand, their origin is not clear with…

astro-ph.CO2024★ 24 cited

Scalar perturbations from inflation in the presence of gauge fields

R. Durrer, R. von Eckardstein, Deepen Garg +3

We study how Abelian-gauge-field production during inflation affects scalar perturbations in the case when the gauge field interacts with the inflaton directly (by means of generic…

astro-ph.CO2012★ 27 cited

Generation of helical magnetic fields from inflation

Rajeev Kumar Jain, Ruth Durrer, Lukas Hollenstein

The generation of helical magnetic fields during single field inflation due to an axial coupling of the electromagnetic field to the inflaton is discussed. We find that such a coup…