Interacting dark energy and transient accelerated expansion

2013/02/06 by W. Zimdahl, Zimdahl, W., C. Z. Vargas +3
Physics and Astronomy · #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #astro-ph.CO #gr-qc

paper · pdf · doi:10.48550/arxiv.1302.1347

3 pages, 1 figure, submitted to the Proceedings of the Marcel Grossmann Meeting MG 13, Stockholm, 1-7 July 2012

arxiv created 2013/02/06 · arxiv updated 2013/02/07

Abstract

We argue that interactions in the dark sector may have a crucial impact on the cosmological dynamics. In particular, the future cosmic evolution may be very different from that predicted by the LCDM model. An example is a scenario in which the currently observed accelerated expansion is an interaction-induced transient phenomenon. We discuss such type of behavior on the basis of a two-fluid toy model.

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