Low-energy quantum string cosmology

TL;DR

This paper develops a quantum cosmology framework using the Wheeler-De Witt approach applied to low-energy string theory, exploring scattering processes in minisuperspace to address the graceful exit problem.

Contribution

It introduces a novel Wheeler-De Witt framework for string cosmology with an effective dilaton potential, classifies scattering processes, and discusses their implications for the graceful exit problem.

Findings

Classifies four types of scattering processes in minisuperspace.

Analyzes the relevance of these processes for the graceful exit problem.

Provides a new approach to quantum string cosmology with potential non-perturbative effects.

Abstract

We introduce a Wheeler-De Witt approach to quantum cosmology based on the low-energy string effective action, with an effective dilaton potential included to account for non-perturbative effects and, possibly, higher-order corrections. We classify, in particular, four different classes of scattering processes in minisuperspace, and discuss their relevance for the solution of the graceful exit problem.