Birth of the Universe as quantum scattering in string cosmology

TL;DR

This paper explores the origin of the universe through quantum scattering in string cosmology, comparing it with traditional tunneling models, and offers a novel perspective on the universe's birth within a quantum string framework.

Contribution

It introduces a quantum scattering approach to universe creation in string cosmology, contrasting it with the tunneling paradigm and providing new insights into initial conditions.

Findings

Universe's birth modeled as wave scattering in superspace

Comparison between scattering and tunneling scenarios

New framework for quantum cosmology in string theory

Abstract

In a Wheeler-de Witt approach to quantum string cosmology, the present state of the Universe arises from the scattering and reflection of the wave function representing the initial string vacuum in superspace. This scenario is described and compared with the more conventional quantum cosmology picture, in which the birth of the Universe is represented as a process of tunnelling "from nothing" in superspace.