From the 1 of 4 linked papers with an AI index.
4 papers
Models with Non-minimal Coupling in Primordial Universe and Cosmological Observations
Alireza Talebian, Hassan Firouzjahi, Fereshteh Felegary
The paper studies inflationary models with a non‑minimal coupling between the inflaton and gravity, analyzing their predictions for the tensor‑to‑scalar ratio and spectral index in…
k-inflation: Non-separable case meets ACT measurements
Tahere Fallahi Serish, Seyed Ali Hosseini Mansoori, Fereshteh Felegary +2
We investigate a non-separable subset of -essence in which the kinetic and potential sectors interact through an coupling, implemented via a potential-dependent pref…
Tilt and Tensor-to-Scalar Ratio in Multi-Scalar Field Inflation: Non-Sum-Separable Case
Fereshteh Felegary, Seyed Ali Hosseini Mansoori, Tahere Fallahi Serish +1
The canonical multi-scalar field inflation where the kinetic and potential terms are sum-separable is ruled out by the current observations for the chaotic-type potential $V=\sum_{…
Probing single-field inflation: predictions, constraints, and theoretical viewpoints
Fereshteh Felegary, Thammarong Eadkhong, Farruh Atamurotov +1
This work investigates a single-field inflationary model, a specific class of the K-essence models where a coupling term exists between canonical Lagrangian and the potential. This…