Inflationary gravitational waves and exotic pre Big Bang Nucleosynthesis cosmology

Abstract

According to the most popular scenario, the early Universe should have experienced an accelerated expansion phase, called Cosmological Inflation, after which the standard Big Bang Cosmology would have taken place giving rise to the radiation-dominated epoch. However, the details of the inflationary scenario are far to be completely understood. Thus, in this paper we study if possible additional (exotic) cosmological phases could delay the beginning of the standard Big Bang history and alter some theoretical predictions related to the inflationary cosmological perturbations, like, for instance, the order of magnitude of the tensor-to-scalar ratio $r$.

arXiv comment6 pages, 2 figures, Proceeding article - 10th Young Researcher Meeting, June 2019,

References in corpus (21)

• The Hierarchy Problem and New Dimensions at a Millimeter
• New Dimensions at a Millimeter to a Fermi and Superstrings at a TeV
• Towards the Theory of Reheating After Inflation
• Reheating after Inflation
• Inflation Dynamics and Reheating
• Universe Reheating after Inflation
• Four-dimensional String Compactifications with D-Branes, Orientifolds and Fluxes
• Universality Class in Conformal Inflation
• Superconformal Inflationary $\alpha$-Attractors
• Reheating in Inflationary Cosmology: Theory and Applications
• Open Strings
• Minimal Supergravity Models of Inflation
• The Unity of Cosmological Attractors
• Superconformal generalizations of the Starobinsky model
• Theory and Phenomenology of Type I strings and M-theory
• Grand Unified Theories and Supersymmetry in Particle Physics and Cosmology
• When the Universe Expands Too Fast: Relentless Dark Matter
• Cosmological Attractors and Asymptotic Freedom of the Inflaton Field
• On Inflationary Scale, Reheating Scale and Pre-BBN Cosmology with Scalar Fields
• Mass scales, supersymmetry breaking and open strings
• Post-inflationary Scalar Tensor Cosmology and Inflationary Parameters

Cited by in corpus (1)

• Minimal Leptogenesis in Brane-inspired Cosmology