General Cosmological Features of the Einstein-Yang-Mills-Dilaton System

TL;DR

This paper explores the cosmological behavior of Einstein-Yang-Mills-Dilaton systems, focusing on energy exchange mechanisms and their implications for string theory and supersymmetry breaking.

Contribution

It identifies a new energy exchange term between the dilaton and Yang-Mills fields in a cosmological setting, advancing understanding of their interactions.

Findings

Discovery of a new energy exchange term

Implications for the Polonyi problem in string models

Insights into dynamical supersymmetry breaking

Abstract

We establish the main features of homogeneous and isotropic dilaton, metric and Yang-Mills field configurations in a cosmological framework. Special attention is paid to the energy exchange between the dilaton and the Yang-Mills field and, in particular, a new energy exchange term is identified. Implications for the Polonyi problem in 4-dimensional string models and in dynamical supersymmetry breaking scenarios are discussed.