The Matter Bounce Alternative to Inflationary Cosmology

2012/06/19 by Brandenberger, Robert H. · 3 citations
#Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th)

paper · doi:10.48550/arxiv.1206.4196

Abstract

A bouncing cosmology with an initial matter-dominated phase of contraction during which scales which are currently probed with cosmological observations exit the Hubble radius provides a mechanism alternative to inflation for producing a nearly scale-invariant spectrum of cosmological perturbations. In this review article I first discuss the evolution of cosmological fluctuations in the matter bounce scenario, and then discuss various attempts at realizing such a scenario. Observational signatures which will allow the matter bounce to be distinguished from the inflationary paradigm are also discussed.

Cited by

• Quasi-dust ekpyrotic scenario in Loop Quantum Cosmology
• Non-singular bouncing cosmology in f(T, T) gravity with energy condition violations
• Singularities in loop quantum cosmology

Related

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• Bouncing Scenario and Cosmic Dynamics in Modified Theories of Gravity
• Distinguishing bounce and inflation via quantum signatures from cosmic microwave background
• Matter Bounce Scenario in F(T) gravity
• Requiem to "Proof of Inflation" or Sourced Fluctuations in a Non-Singular Bounce