3 papers
astro-ph.CO2025
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
astro-ph.CO2024
Alleviating cosmological tensions with a hybrid dark sector
Elsa M. Teixeira, Gaspard Poulot, Carsten van de Bruck +2
We investigate a cosmological model inspired by hybrid inflation, where two scalar fields representing dark energy (DE) and dark matter (DM) interact through a coupling that is pro…
astro-ph.CO2024
Scalar field dark matter with time-varying equation of state
Gaspard Poulot, Elsa M. Teixeira, Carsten van de Bruck +1
We propose a new model of scalar field dark matter interacting with dark energy. Adopting a fluid description of the dark matter field in the regime of rapid oscillations, we find…