Dilaton-axion modular inflation in supergravity

Abstract

Dilaton and axion are ubiquitous in extended supergravities and closed superstrings. We propose new models of modular inflation in four-dimensional $N=1$ supergravity coupled to the chiral dilaton-axion-goldstino supermultiplet, which fit some necessary conditions of superstring cosmology. The model parameters are tuned to obey precision measurements of the cosmic microwave background radiation. We employ the modular-invariant superpotentials and asymptotically modular-invariant Kähler potentials, and achieve axion stabilization with high-scale supersymmetry breaking.

12 pages, 6 figures, LaTeX

References in corpus (4)

• BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
• Inflation in Supergravity with a Single Chiral Superfield
• Moduli inflation from modular flavor symmetries
• Inflection-Point Sgoldstino Inflation in no-Scale Supergravity

Cited by in corpus (2)

• Are single-field models of inflation and PBHs production ruled out by ACT observations?
• Modular Invariant Slow Roll Inflation