The alternative scalar field dark sector of the Universe: Cosmological inflation, quintessence and ekpyrotic model in the framework of scalar-tensor cosmology

arXiv:2609.37293 · gr-qc, astro-ph.CO, hep-th · Submitted 2026-09-29 · Read on arXiv

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

Submitted: 2026-09-29

Updated: 2026-09-29

Terminology

• Quintessence — 191× in this paper · explained in 2 episodes
• Non-Gaussianity — 57× in this paper · explained in 2 episodes
• Consistency — 19× in this paper · explained in 3 episodes
• Reheating — 19× in this paper · explained in 2 episodes
• Anisotropy — 18× in this paper · explained in 3 episodes
• Decoupling — 16× in this paper · explained in 2 episodes
• Symmetry Breaking — 16× in this paper · explained in 3 episodes
• Bispectrum — 10× in this paper · explained in 3 episodes
• Fine-Tuning — 9× in this paper · explained in 5 episodes
• Primordial non-Gaussianity — 9× in this paper · explained in 2 episodes
• Trace — 8× in this paper · explained in 2 episodes
• Generalization — 7× in this paper · explained in 13 episodes
• Degeneracy — 6× in this paper · explained in 3 episodes
• Homogeneity — 6× in this paper · explained in 2 episodes
• Adiabatic Evolution — 3× in this paper · explained in 2 episodes
• Robustness — 3× in this paper · explained in 5 episodes
• Adam — 2× in this paper · explained in 2 episodes
• Boltzmann Equation — 2× in this paper · explained in 2 episodes
• Effective Field Theory (EFT) — 2× in this paper · explained in 2 episodes
• Hubble Tension — 2× in this paper · explained in 9 episodes
• Phase Transitions — 2× in this paper · explained in 2 episodes
• Abundance — 1× in this paper · explained in 1 episode
• Accuracy — 1× in this paper · explained in 1 episode
• Anisotropic Distortions — 1× in this paper · explained in 1 episode
• Benchmark — 1× in this paper · explained in 2 episodes
• Clustering — 1× in this paper · explained in 2 episodes
• Dark Energy Spectroscopic Instrument — 1× in this paper
• Domain Walls — 1× in this paper · explained in 2 episodes
• Embeddings — 1× in this paper · explained in 2 episodes
• Equation of State (EoS) — 1× in this paper · explained in 4 episodes
• Initial Data — 1× in this paper · explained in 2 episodes
• Metastability — 1× in this paper · explained in 2 episodes
• Modified Gravity (MG) — 1× in this paper · explained in 2 episodes
• Nonminimal coupling — 1× in this paper · explained in 2 episodes
• Redundancy — 1× in this paper · explained in 2 episodes
• Regularization — 1× in this paper · explained in 3 episodes
• Stochastic Dynamics — 1× in this paper · explained in 2 episodes
• Topological Defects — 1× in this paper · explained in 2 episodes
• Verifiability — 1× in this paper · explained in 2 episodes
• Weak Lensing — 1× in this paper · explained in 2 episodes
• World Model — 1× in this paper · explained in 7 episodes

Sources

• Did the Big Bang and cosmic inflation really happen? (A tale of alternative cosmological models)
• Is it possible to separate baryonic from dark matter within the $\Lambda$-CDM formalism?
• Non-minimally coupled scalar field dark sector of the universe: in-depth (Einstein frame) case study
• Phase-resolved field-space distance criteria in ekpyrotic, bouncing and cyclic cosmologies
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Planck 2018 results. VI. Cosmological parameters
• Planck 2018 results. X. Constraints on inflation
• TASI Lectures on Inflation
• Modified Gravity and Cosmology
• Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution
• Conformal transformations in classical gravitational theories and in cosmology
• The (pseudo)issue of the conformal frame revisited
• Conformal-Frame (In)dependence of Cosmological Observations in Scalar-Tensor Theory
• Conformal frames in cosmology
• Formalising the Slow-Roll Approximation in Inflation
• General relativity as an effective field theory: The leading quantum corrections
• The Effective Field Theory of Inflation
• Effective Field Theory for Inflation
• GRAVITY AND GLOBAL SYMMETRIES
• Symmetries in quantum field theory and quantum gravity

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