Gravitational Wave Background from Phantom Superinflation

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.

3 pages, 2 eps figures, to be published in PRD, revised with published version, refs. added

References in corpus (17)

• Reconstruction of a scalar-tensor theory of gravity in an accelerating universe
• Unified phantom cosmology: inflation, dark energy and dark matter under the same standard
• Tensor Perturbations in Inflationary Models as a Probe of Cosmology
• Relic Gravitational Waves from String Cosmology
• Detectability of inflation-produced gravitational waves
• B-Inflation
• Phantom Inflation and Primordial Perturbation Spectrum
• The cosmic gravitational wave background in a cyclic universe
• Nearly Scale-Invariant Spectrum of Adiabatic Fluctuations May be from a Very Slowly Expanding Phase of the Universe
• Spectrum of relic gravitational waves in string cosmology
• Dilaton Contributions to the Cosmic Gravitational Wave Background
• Inflation versus Cyclic Predictions for Spectral Tilt
• Inflation with violation of the null energy condition
• Phantom inflation and the "Big Trip"
• CBR anisotropy from primordial gravitational waves in inflationary cosmologies
• The Primordial Perturbation Spectrum from Various Expanding and Contracting Phases
• On Dualities Of Primordial Perturbation Spectra

Cited by in corpus (15)

• The gravitational wave background from super-inflation in Loop Quantum Cosmology
• Detecting Relic Gravitational Waves by Pulsar Timing Arrays: Effects of Cosmic Phase Transitions and Relativistic Free-Streaming Gases
• Intermittent null energy condition violations during inflation and primordial gravitational waves
• Propagating speed of primordial gravitational waves and inflation
• Is there an effect of a nontrivial $c_T$ during inflation?
• Probing Noncommutativity with Inflationary Gravitational Waves
• Pre-inflationary primordial perturbations
• Phantom Inflation in Little Rip
• Null energy condition violation during inflation and pulsar timing array observations
• Nanohertz gravitational waves from NEC violation in the early universe
• Generating enhanced primordial GWs during inflation with intermittent violation of NEC and diminishment of GW propagating speed
• "Phantom" Inflation in Warped Compactification
• Cosmological perturbations in transient phantom inflation scenarios
• Emergently Thermalized Islands in the Landscape
• Climbing over the potential barrier during inflation via null energy condition violation