Interacting models of soft coincidence
Astrophysics
2009-11-11 v1 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
The coincidence problem of late cosmic acceleration is a serious riddle in connection with our understanding of the evolution of the Universe. In this paper we show that an interaction between the dark energy component (either phantom or quintessence) and dark matter can alleviate it. In this scenario the baryon component is independently conserved. This generalizes a previous study [S. del Campo, R. Herrera, and D. Pavon, Phys. Rev. D 71, 123529 (2005)] in which neither baryons nor phantom energy were considered.
Cite
@article{arxiv.astro-ph/0606520,
title = {Interacting models of soft coincidence},
author = {Sergio del Campo and Ramon Herrera and German Olivares and Diego Pavon},
journal= {arXiv preprint arXiv:astro-ph/0606520},
year = {2009}
}
Comments
18 pages, 9 figures; to be published in the Physical Review, section D