Observable Primordial Gravitational Waves from Cosmic Inflation
General Relativity and Quantum Cosmology
2023-08-03 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
I will review briefly how inflation is expected to generate a stochastic background of primordial gravitational waves (GWs). Then, I will discuss how such GWs can be enhanced by a stiff period following inflation, enough to be observable. I will present examples of this in the context of hybrid inflation with -attractors, or a period of hyperkination in Palatini gravity.
Keywords
Cite
@article{arxiv.2308.00777,
title = {Observable Primordial Gravitational Waves from Cosmic Inflation},
author = {Konstantinos Dimopoulos},
journal= {arXiv preprint arXiv:2308.00777},
year = {2023}
}
Comments
10 pages, 1 figure, contribution to proceedings of HEP2023, Ioannina, April 2023