Single-field D-type inflation in the minimal supergravity in light of Planck-ACT-SPT data
General Relativity and Quantum Cosmology
2026-02-02 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
The minimal supergravity framework is applied to a construction of new D-type single-field models of inflation in agreement with precision measurements of the cosmic microwave background radiation by Planck Collaboration, BICEP/Keck Collaboration, Atacama Cosmology Telescope and South Pole Telescope. The inflaton potential, the power spectrum of scalar perturbations, the cosmological observables and the reconstruction procedure can be very simple when using the e-folds as the running variable.
Keywords
Cite
@article{arxiv.2512.08760,
title = {Single-field D-type inflation in the minimal supergravity in light of Planck-ACT-SPT data},
author = {Yermek Aldabergenov and Sergei V. Ketov},
journal= {arXiv preprint arXiv:2512.08760},
year = {2026}
}
Comments
18 pages, 2 figures; V.2: references added