Super-Inflation, Non-Singular Bounce, and Low Multipoles

Abstract

In this paper we present a simple argument that shows a non-singular bouncing cosmology naturally yields an era of super-inflation which can precede the phase of normal potential driven inflation. One of the consequences of a super-inflation phase is that it might be able to account for suppressing the low multipole in the amplitude of the cosmic microwave background radiation. We are able to constrain the number of e-folds of super-inflation from the current Planck data to be roughly 3 e-folds in a model independent way.

4 pages

References in corpus (2)

• Gauge invariant MSSM inflaton
• Super-inflation in Loop Quantum Cosmology

Cited by in corpus (35)

• A Critical Review of Classical Bouncing Cosmologies
• Occurrence of exact $R^2$ inflation in non-local UV-complete gravity
• A Cosmological Super-Bounce
• Stability of the Einstein static Universe in $f(R,T)$ gravity
• Consistent Higher Derivative Gravitational theories with stable de Sitter and Anti-de Sitter Backgrounds
• Just enough inflation: power spectrum modifications at large scales
• Conformal Frame Dependence of Inflation
• Detecting Relic Gravitational Waves by Pulsar Timing Arrays: Effects of Cosmic Phase Transitions and Relativistic Free-Streaming Gases
• Nonlocal star as a blackhole mimicker
• Super-accelerating bouncing cosmology in asymptotically-free non-local gravity
• On the possibility of blue tensor spectrum within single field inflation
• Ultra slow-roll G-inflation
• Low-l CMB Power Loss in String Inflation
• Super-inflation and generation of first order vector perturbations in ELKO
• Quantum aspects of chaos and complexity from bouncing cosmology: A study with two-mode single field squeezed state formalism
• Pre-inflationary primordial perturbations
• Super-Planckian excursions of the inflaton and quantum corrections
• Nonlocal generalization of Galilean theories and gravity
• Geodesic completeness and homogeneity condition for cosmic inflation
• Primordial perturbations with pre-inflationary bounce
• Generalised Boundary Terms for Higher Derivative Theories of Gravity
• Nonlocal gravity with worldline inversion symmetry
• Defocusing of Null Rays in Infinite Derivative Gravity
• Emergent universe scenario and the low CMB multipoles
• String-Inspired Infinite-Derivative Theories of Gravity: A Brief Overview
• UV completion of the Starobinsky model, tensor-to-scalar ratio, and constraints on non-locality
• Stability of Hyperbolic and Matter-Dominated Bounce Cosmologies From F(R,G) Modified Gravity at Late Evolution Stages
• An anisotropic bouncing universe in non-local gravity
• Stable, non-singular bouncing universe with only a scalar mode
• What initial condition of inflation would suppress the large-scale CMB spectrum?
• Towards the bounce inflationary gravitational wave
• Hamiltonian Analysis for Infinite Derivative Field Theories and Gravity
• Perturbations in Bouncing and Cyclic Models, a General Study
• Emergent universe revisited through the CSL theory
• Cosmological Singularities in Brane Gravity