On a possible solution for the Polonyi problem in string cosmology

TL;DR

This paper explores a cosmological model involving dilaton, metric, and Yang-Mills fields, proposing a new energy exchange mechanism that could resolve the Polonyi problem in string cosmology.

Contribution

It introduces a novel energy exchange term between the dilaton and Yang-Mills fields that may solve the Polonyi problem in 4D string models.

Findings

Identification of a new energy exchange term

Potential solution to the Polonyi problem

Analysis of homogeneous and isotropic configurations

Abstract

We establish the main features of homogeneous and isotropic dilaton, metric and Yang-Mills configurations in a cosmological framework. We identify a new energy exchange term between the dilaton and the Yang-Mills field which may lead to a possible solution to the Polonyi problem in 4-dimensional string models.