Thermodynamic approach to holographic dark energy and the Renyi entropy

被引：178

作者：

Moradpour, H. ^{[1
]}

Moosavi, S. A. ^{[1
]}

Lobo, I. P. ^{[2
]}

Morais Graca, J. P. ^{[2
]}

Jawad, A. ^{[3
]}

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

机构：

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

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

[3] COMSATS Univ Islamabad, Dept Math, Lahore Campus, Lahore, Pakistan

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

来源：

EUROPEAN PHYSICAL JOURNAL C | 2018年 / 78卷 / 10期

关键词：

GALAXY REDSHIFT SURVEY; BLACK-HOLE; COSMOLOGICAL CONSTANT; GENERALIZED ENTROPY; POWER-SPECTRUM; TSALLIS; MODELS; TRANSITION; ANISOTROPY; UNIVERSE;

D O I：

10.1140/epjc/s10052-018-6309-8

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Using the first law of thermodynamics, we propose a relation between the system entropy (S) and its IR (L) and UV cutoffs. In addition, applying this relation to the apparent horizon of flat FRW universe, whose entropy meets the Renyi entropy, a new holographic dark energy model is addressed. Thereinafter, the evolution of the flat FRW universe, filled by a pressureless source and the obtained dark energy candidate, is studied. In our model, there is no mutual interaction between the cosmos sectors. We find out that the obtained model is theoretically powerful to explain the current accelerated phase of the universe. This result emphasizes that the generalized entropy formalism is suitable for describing systems including the long-range interactions such as gravity.

引用

页数：6

共 78 条

[1] General pseudoadditivity of composable entropy prescribed by the existence of equilibrium [J].