Dark energy models through nonextensive Tsallis' statistics

被引：96

作者：

Barboza, Edesio M., Jr. ^{[1
]}

Nunes, Rafael da C. ^{[2
,3
]}

Abreu, Everton M. C. ^{[4
,5
]}

Neto, Jorge Ananias ^{[5
]}

机构：

[1] Univ Estado Rio Grande do Norte, Dept Fis, BR-59610210 Mossoro, RN, Brazil

[2] Univ Autonoma Barcelona, Dept Fis, Bellaterra 08193, Spain

[3] Minist Educ & Cultura, Fundacao CAPES, BR-70040020 Brasilia, DF, Brazil

[4] Univ Fed Rural Rio de Janeiro, Dept Fis, Grp Fis Teor & Matemat Fis, BR-23890971 Seropedica, RJ, Brazil

[5] Univ Fed Juiz de Fora, Dept Fis, BR-36036330 Juiz De Fora, MG, Brazil

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2015年 / 436卷

关键词：

Tsallis' thermostatistics; Dark energy; Dark matter; Verlinde's formalism; PROBE WMAP OBSERVATIONS; EQUIPARTITION;

D O I：

10.1016/j.physa.2015.05.002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页码：301 / 310

页数：10