Production and Detection of Cosmic Gravitational Wave Background in String Cosmology

TL;DR

This paper discusses the predicted cosmic gravitational wave background from string cosmology, its current bounds, and prospects for detection with existing and future gravitational wave detectors.

Contribution

It provides a detailed analysis of the gravitational wave background in string cosmology and explores detection strategies with various gravitational wave detectors.

Findings

Current astrophysical and cosmological bounds on the gravitational wave background.

Feasibility of detecting the background with large and planned detectors.

Potential use of smaller detectors for detection.

Abstract

String cosmology models predict a cosmic background of gravitational waves produced during a period of dilaton-driven inflation. I describe the background, present astrophysical and cosmological bounds on it, and discuss in some detail how it may be possible to detect it with large operating and planned gravitational wave detectors. The possible use of smaller detectors is outlined.