Is the CMB revealing signs of pre-inflationary physics?

2025/04/03 by Brahma, Suddhasattwa, Calderón-Figueroa, Jaime · 6 citations
#Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th)

paper · doi:10.48550/arxiv.2504.02746

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.

Cited by

• Single-field D-type inflation in the minimal supergravity in light of Planck-ACT-SPT data
• Quantum Recoherence in Presence of Excited States in the Early Universe
• Symmetry-Protected α-Attractor Hybrid Inflation in Supergravity and Constraints from ACT DR6 and DESI DR2
• The implications of inflation for the last ACT
• Heavy Field Effects on Inflationary Models in Light of ACT Data
• Inflationary Models with Gauss-Bonnet Coupling in Light of ACT Observations

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