3 papers
astro-ph.CO2026
Running of the spectral index: Reconciling the CMB with the Lyman- Forest
Malcolm Fairbairn, Lucien Heurtier, MarÃa Olalla Olea-Romacho
We investigate the scale dependence of the primordial power spectrum by combining \Planck, ACT DR6, SPT-3G, and eBOSS Lyman- forest data, extending sensitivity to smaller comov…
astro-ph.CO2025
Effect of the Memory Burden on Primordial Black Hole Hot Spots
Nathaniel Levy, Lucien Heurtier
When primordial black holes (PBHs) evaporate, they deposit energy in the surrounding plasma, leading to temperature gradients, or hot spots, that evolve during the evaporation proc…
hep-th2025
Exact Renormalisation Group Evolution of the Inflation Dynamics: Reconciling -Attractors with ACT
Jean Alexandre, Lucien Heurtier, Silvia Pla
We present a non-perturbative framework for the dynamics of slow-roll inflation that consistently incorporates quantum corrections, based on an alternative functional renormalisati…