The Matter Bounce Alternative to Inflationary Cosmology

By Robert Brandenberger. 2012

181 citations recorded by the source corpus.

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.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/20b6107c11b6b74cd92fd3373686639428ad9fbb

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In Astronomy and Astrophysics

In Nuclear and High Energy Physics

Citations in the corpus

A Critical Review of Classical Bouncing Cosmologies (2014, unknown): “[215] R. H. Brandenberger (2012), 1206.4196.”
Bouncing Cosmologies: Progress and Problems (2016, background): “2 with a contracting phase which is the time reverse of the standard cosmology phase of expansion corresponds to a symmetric bounce as in the matter bounce scenario [13, 14].”
Trans-Planckian issues for inflationary cosmology (2012, background): “The simplest way to visualize the background space-time is to take a mirror inverse of our expanding Standard Cosmology space-time (which is a contracting universe which begins in a phase of matter-domination) and match it to the expanding phases of Standard Cosmology via a short non-singular bounce”
The matter bounce scenario in loop quantum cosmology (2012, background): “Recent reviews of these two paradigms are [2] and [3], respectively.”