Cosmological backreaction and the future evolution of an accelerating universe

2013/06/12 by Nilok Bose, Bose, Nilok, A. S. Majumdar +1
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Solar and Space Plasma Dynamics #astro-ph.CO

paper · pdf · doi:10.48550/arxiv.1306.2877

3 pages, 1 figure. Summary of talk given at the 13th Marcel Grossmann Meeting. Submitted to conference proceedings

arxiv created 2013/06/12 · arxiv updated 2013/06/13

Abstract

We investigate the effect of backreaction due to inhomogeneities on the evolution of the present universe within the Buchert framework. Our analysis shows how backreaction from inhomogeneities in the presence of the cosmic event horizon causes the current acceleration of the Universe to slow down in the future and even lead in certain cases to the emergence of a future decelerating epoch.

Related

• Study of cosmic backreaction on the future evolution of an accelerating universe using multiple domains
• Backreaction as an alternative to dark energy and modified gravity
• Cosmic Acceleration from Causal Backreaction in a Smoothly Inhomogeneous Universe
• Backreaction of linear perturbations and dark energy
• Cosmic Acceleration and a New Concordance from Causal Backreaction