Models with Non-minimal Coupling in Primordial Universe and Cosmological Observations

arXiv:2607.12974 · astro-ph.CO, gr-qc, hep-th · Submitted 2026-07-14 · Read on arXiv

Alireza Talebian, Hassan Firouzjahi, Fereshteh Felegary

astro-ph.CO, gr-qc, hep-th

Submitted: 2026-07-14

Comments: 24 pages, 7 figures

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• ACT Data — 11× in this paper · explained in 1 episode
• Non-Gaussianity — 5× in this paper · explained in 2 episodes
• Reheating — 5× in this paper · explained in 2 episodes
• Atacama Cosmology Telescope — 4× in this paper
• Symmetry Breaking — 3× in this paper · explained in 3 episodes
• Consistency — 2× in this paper · explained in 3 episodes
• Metric-Affine Gravity — 2× in this paper · explained in 2 episodes
• Nonminimal coupling — 2× in this paper · explained in 2 episodes
• Unified Framework — 2× in this paper · explained in 5 episodes
• Anisotropy — 1× in this paper · explained in 3 episodes
• Cosmic Microwave Background — 1× in this paper
• Homogeneity — 1× in this paper · explained in 2 episodes
• Metastability — 1× in this paper · explained in 2 episodes

Sources

• Planck 2018 results. VI. Cosmological parameters
• Planck 2018 results. X. Constraints on inflation
• Fractional attractors in light of the latest ACT observations
• The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and $\Lambda$CDM Parameters
• The Atacama Cosmology Telescope: DR6 Constraints on Extended Cosmological Models
• Minimal but non-minimal inflation and electroweak symmetry breaking
• The Palatini side of inflationary attractors
• New universal attractor in nonmininally coupled gravity: Linear inflation
• A minimal model of inflation and dark radiation
• Non-minimal (self-)running inflation: metric vs. Palatini formulation
• Dynamically induced Planck scale and inflation in the Palatini formulation
• Scale-invariance, dynamically induced Planck scale and inflation in the Palatini formulation
• Multiple point criticality principle and Coleman-Weinberg inflation
• Pseudo-Goldstone dark matter in a radiative inverse seesaw scenario
• Symmetry-breaking inflation in non-minimal metric-affine gravity
• $\tilde\xi$-attractors in metric-affine gravity
• Natural Metric-Affine Inflation
• Natural inflation in Palatini $F(R,X)$
• Generalized Hilltop Inflation
• The Standard Model Higgs boson as the inflaton

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