Dark energy models through nonextensive Tsallis' statistics
General Relativity and Quantum Cosmology
2014-03-25 v1
Abstract
The accelerated expansion of the Universe is one of the greatest challenges of modern physics. One candidate to explain this phenomenon is a new field called dark energy. In this work we have used the Tsallis nonextensive statistical formulation of the Friedmann equation to explore the Barboza-Alcaniz and Chevalier-Polarski-Linder parametric dark energy models and the Wang-Meng and Dalal vacuum decay models. After that, we have discussed the observational tests and the constraints concerning the Tsallis nonextensive parameter.
Cite
@article{arxiv.1403.5706,
title = {Dark energy models through nonextensive Tsallis' statistics},
author = {Rafael da C. Nunes and Edésio M. Barboza and Everton M. C. Abreu and Jorge Ananias Neto},
journal= {arXiv preprint arXiv:1403.5706},
year = {2014}
}
Comments
7 pages, two-column format