Gravitational Wave Background from Phantom Superinflation

TL;DR

This paper investigates the gravitational wave background generated during phantom superinflation, a proposed early universe phase driven by a phantom field, highlighting its potential detectability and implications for understanding the universe's initial conditions.

Contribution

It provides a detailed analysis of the gravitational wave background produced during phantom superinflation, a novel early universe scenario driven by a phantom field.

Findings

Gravitational wave background is significantly excited during phantom superinflation.

The spectrum of these gravitational waves could be detectable with future observations.

This work links phantom superinflation to observable gravitational wave signatures.

Abstract

Recently, the early superinflation driven by phantom field has been proposed and studied. The detection of primordial gravitational wave is an important means to know the state of very early universe. In this brief report we discuss in detail the gravitational wave background excited during the phantom superinflation.