Is the CMB revealing signs of pre-inflationary physics?

Abstract

Given the latest observational constraints coming from the joint analyses of the Atacama Cosmology Telescope, the Planck Satellite and other missions, we point out the possibility of reconciling fundamental particle-physics models of inflation with data by considering non-Bunch-Davies initial conditions for primordial density perturbations.

9 pages

Cited by in corpus (5)

• Keeping the relation between the Starobinsky model and no-scale supergravity ACTive
• Non-minimal coupling in light of ACT
• Increase of $n_s$ in regularized pole inflation & Einstein-Cartan gravity
• Observational constraints on inflationary models with non-minimally derivative coupling by ACT
• Expansion-contraction duality breaking in a Planck-scale sensitive cosmological quantum simulator