ACT DR6+Planck Data Reveal Impact of Non-Zero Vacuum Expectation on Early Universe Inflation

A new paper submitted to arXiv’s Astrophysics section on February 6, 2026, titled ‘ACT DR6+Planck impact on inflation with non-zero vacuum expectation value and the post-inflationary behavior,’ suggests that cosmic microwave background (CMB) observational data, specifically from ACT DR6 and the Planck satellite, point to the existence of a non-zero vacuum expectation value during the inflationary epoch of the early universe.

This research investigates the implications of such a concept, which could influence the universe’s behavior after inflation. The research team, led by F. B. M. dos Santos, aims to use this latest observational data to examine the necessity of modifying the standard model of inflationary theory and to offer new insights into understanding cosmic evolution.

The findings from this study could shed new light on our comprehension of the early universe’s state and dynamics, potentially providing significant implications for future research in cosmology.

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