Work

Single-field D-type inflation in the minimal supergravity in light of Planck-ACT-SPT data

Year: 2026

Type: article

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.

Source: The European Physical Journal C

DOI: 10.1140/epjc/s10052-026-15325-8

Authors: Yermek Aldabergenov, Sergei V. Ketov

Institutions: Fudan University, National Research Tomsk State University, Tokyo Metropolitan University, The University of Tokyo

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Ministry of Education, Culture, Sports, Science and Technology, Tomsk State University, Tokyo Metropolitan University

Award: G200408876