Generalized entropy formalism and a new holographic dark energy model

被引：264

作者：

Jahromi, A. Sayahian ^{[1
]}

Moosavi, S. A. ^{[2
]}

Moradpour, H. ^{[2
]}

Morais Graca, J. P. ^{[3
]}

Lobo, I. P. ^{[3
]}

Salako, I. G. ^{[4
]}

Jawad, A. ^{[5
]}

机构：

[1] Islamic Azad Univ, Zarghan Branch, Zarghan, Iran

[2] RIAAM, POB 55134-441, Maragha, Iran

[3] Univ Fed Paraiba, Dept Fis, Caixa Postal 5008, BR-58051970 Joao Pessoa, PB, Brazil

[4] IMSP, 01 BP 613, Porto Novo, Benin

[5] COMSATS Inst Informat Technol, Dept Math, Lahore 54000, Pakistan

来源：

PHYSICS LETTERS B | 2018年 / 780卷

关键词：

TSALLIS; GRAVITY; SHARMA; MATTER; INSTABILITY; EQUATION; BOUNDS; STATE; GAS;

D O I：

10.1016/j.physletb.2018.02.052

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recently, the Renyi and Tsallis generalized entropies have extensively been used in order to study various cosmological and gravitational setups. Here, using a special type of generalized entropy, a generalization of both the Renyi and Tsallis entropy, together with holographic principle, we build a new model for holographic dark energy. Thereinafter, considering a flat FRW universe, filled by a pressureless component and the new obtained dark energy model, the evolution of cosmos has been investigated showing satisfactory results and behavior. In our model, the Hubble horizon plays the role of IR cutoff, and there is no mutual interaction between the cosmos components. Our results indicate that the generalized entropy formalism may open a new window to become more familiar with the nature of spacetime and its properties. (C) 2018 The Author(s). Published by Elsevier B.V.

引用

页码：21 / 24

页数：4

共 75 条

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