Work

A mechanism for freezing moduli into Minkowski spacetime

Year: 2025

Type: article

Abstract: We discuss FLRW-cosmologies with negatively-curved spatial slices that induce a late-time freezing of all the moduli of an effective field theory through Hubble friction, independently of the moduli-space curvature. This holds for pure moduli, which appear ubiquitously in string compactifications. Crucially, the cosmological solutions approach a Milne universe. Hence, the mechanism we describe in fact corresponds to late-time moduli freezing into Minkowski spacetime.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2025.139455

Author: Flavio Tonioni

Institution: KU Leuven

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Erwin Schrödinger International Institute for Mathematics and Physics, Fonds Wetenschappelijk Onderzoek, Ministero dell'Istruzione e del Merito

Awards: Holography, CFTs and Black Holes, G5616502277