Thermodynamic aspects of entropic cosmology with viscosity

被引：6

作者：

Brevik, I. ^{[1
]}

Timoshkin, A. V. ^{[2
,3
]}

机构：

[1] Norwegian Univ Sci & Technol, Dept Energy & Proc Engn, N-7491 Trondheim, Norway

[2] Tomsk State Pedag Univ, Kievskaja St 60, Tomsk 634061, Russia

[3] Tomsk State Univ Control Syst & Radio Elect, Lenin Ave 36, Tomsk 634050, Russia

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2021年 / 30卷 / 02期

关键词：

Viscous cosmology; thermodynamic cosmology; Tsallis entropy; DARK; NONEXTENSIVITY; INFLATION; GRAVITY; MODEL;

D O I：

10.1142/S0218271821500085

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We describe the evolution of the early and late universe from thermodynamic considerations, using the generalized nonextensive Tsallis entropy with a variable exponent. A new element in our analysis is the inclusion of a bulk viscosity in the description of the cosmic fluid. Using the generalized Friedmann equation, a description of the early and the late universe is obtained.

引用

页数：9

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