SFT non-locality in cosmology: solutions, perturbations and observational evidences

TL;DR

This paper reviews cosmological models derived from String Field Theory applied to Dark Energy, focusing on solutions, perturbations, stability, and observational evidence, highlighting their potential to explain cosmic acceleration.

Contribution

It introduces a method for constructing solutions in linear SFT-based cosmological models and demonstrates their linear stability and observational consistency.

Findings

Explicit solutions for linear SFT cosmological models

Demonstration of linear stability in typical configurations

Discussion of observational evidence supporting these models

Abstract

In this note cosmological models coming out of the String Field Theory (SFT) in application to the Dark Energy are reviewed. A way of constructing solutions in the case of linear models is outlined, cosmological perturbations and observational evidences of such models are explored. We explicitly demonstrate the stability of the system at the linear order in the most typical configuration.