$e^{+}{e}^{-}$ annihilation on the stochastic background of primordial gravitational waves with BKP18

Abstract

The evolution of inflationary primordial gravitational waves with the expansion of the universe is studied while taking into account the $e^{+}{e}^{-}$ annihilation which leads to step correction in the spectrum of primordial gravitational waves which is $\sim 10\%$ in the amplitude and $\sim 25\%$ in the energy density. The amplitudes and energy densities are studied for the $\alpha$-attractor inflation models which are in agreement with the recent BICEP/Keck and Planck 2018 joint result. The energy densities are well within the big bang nucleosynthesis bound, but the spectra for these models are very much below the detection range of the currently operating and upcoming detectors.

arXiv comment13 pages, 6 figures

References in corpus (35)

• Advanced Virgo: a 2nd generation interferometric gravitational wave detector
• Advanced LIGO
• Science Case for the Einstein Telescope
• Gravitational Wave Experiments and Early Universe Cosmology
• Interferometer design of the KAGRA gravitational wave detector
• BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
• Gravitational-wave sensitivity curves
• Universality Class in Conformal Inflation
• Semiclassicality and Decoherence of Cosmological Perturbations
• KAGRA: 2.5 Generation Interferometric Gravitational Wave Detector
• Sensitivity and Performance of the Advanced LIGO Detectors in the Third Observing Run
• Superconformal generalizations of the Starobinsky model
• New Sensitivity Curves for Gravitational-Wave Signals from Cosmological Phase Transitions
• Improved Calculation of the Primordial Gravitational Wave Spectrum in the Standard Model
• A new cosmic microwave background constraint to primordial gravitational waves
• Quantum Effects In Cosmology
• Signatures of the Quantization of Gravity at Gravitational Wave Detectors
• The first second of the Universe
• Relic Gravitational Waves in the Accelerating Universe
• The Noise of Gravitons
• Relic Gravitational Waves and Limits on Inflation
• Noise and decoherence induced by gravitons
• Relic Gravitational Waves and Their Detection
• Stochastic backgrounds of relic gravitons: a theoretical appraisal
• Is the squeezing of relic gravitational waves produced by inflation detectable?
• An exact analytic spectrum of relic gravitational waves in an accelerating universe
• Evolution of gravitational waves through the cosmological QCD transition
• Indirect detection of gravitons through quantum entanglement
• BICEP/Keck and Cosmological Attractors
• Improved constraint on the primordial gravitational-wave density using recent cosmological data and its impact on cosmic string models
• Nonclassical primordial gravitational waves from the initial entangled state
• Modifications by QCD transition and $e^{+}{e}^{-}$ annihilation on analytic spectrum of relic gravitational waves in accelerating universe
• Back-Reaction of Gravitational Waves Revisited
• Squeezing of primordial gravitational waves as quantum discord
• Quantum state evolution in an environment of cosmological perturbations