2 papers
astro-ph.CO2026
A Quantitative Framework for Testing the Hubble Tension in a Bianchi Type I Cosmological Background
Luigi Tedesco
The Hubble tension is usually formulated as a disagreement between two determinations of a single scalar parameter, , within an isotropic FLRW model. We develop a quantitative…
astro-ph.CO2025
Freeze-out and spectral running of primordial gravitational waves in viscous cosmology
Giuseppe Fanizza, Eliseo Pavone, Luigi Tedesco
We investigate the impact of shear viscosity on the propagation of primordial gravitational waves (pGW) after inflation. Without assuming a specific inflationary scenario we focus…