Is the CMB revealing signs of pre-inflationary physics?
Cosmology and Nongalactic Astrophysics
2025-04-04 v1 General Relativity and Quantum Cosmology
High Energy Physics - Theory
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.
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Cite
@article{arxiv.2504.02746,
title = {Is the CMB revealing signs of pre-inflationary physics?},
author = {Suddhasattwa Brahma and Jaime Calderón-Figueroa},
journal= {arXiv preprint arXiv:2504.02746},
year = {2025}
}
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9 pages