期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 436, 期 -, 页码 301-310出版社
ELSEVIER
DOI: 10.1016/j.physa.2015.05.002
关键词
Tsallis' thermostatistics; Dark energy; Dark matter; Verlinde's formalism
资金
- CAPES-Brazil grant [13222-13-9]
- CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico) grant [301030/2012-0, 442369/2014-0]
- CAPES
- CNPq
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. Finally, we have described the dark energy physics through the role of the q-parameter. (C) 2015 Elsevier B.V. All rights reserved.
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