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arXiv · 2403.02125

Dilaton-axion modular inflation in supergravity

Daniel Frolovsky·Sergei V. Ketov
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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 K\"ahler potentials, and achieve axion stabilization with high-scale supersymmetry breaking.

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Daniel Frolovsky, Sergei V. Ketov. 2024-03-04. Dilaton-axion modular inflation in supergravity. https://doi.org/10.1142/s0218271823400084

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