Accelerated expansion of the universe based on emergence of space and thermodynamics of the horizon

被引：19

作者：

Tu, Fei-Quan ^{[1
]}

Chen, Yi-Xin ^{[2
]}

Sun, Bin ^{[1
]}

Yang, You-Chang ^{[1
]}

机构：

[1] Zunyi Normal Univ, Sch Phys & Elect Sci, Zunyi 563006, Peoples R China

[2] Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Zhejiang, Peoples R China

来源：

PHYSICS LETTERS B | 2018年 / 784卷

基金：

中国博士后科学基金;

关键词：

Emergence of space; Quantum gravity phenomenology; Thermodynamics of the horizon; DARK ENERGY; BLACK-HOLE; FIELD-EQUATIONS; CONSTRAINTS; DISCOVERIES; SUPERNOVAE; TELESCOPE; BEHAVIOR; GRAVITY; ENTROPY;

D O I：

10.1016/j.physletb.2018.08.030

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Researches in the several decades have shown that the dynamics of gravity is closely related to thermodynamics of the horizon. In this paper, we derive the Friedmann acceleration equation based on the idea of "emergence of space" and thermodynamics of the Hubble horizon whose temperature is obtained from the unified first law of thermodynamics. Then we derive another evolution equation of the universe based on the energy balance relation rho V-H = TS. Combining the two evolution equations and the equation of state of the cosmic matter, we obtain the evolution solutions of the FRW universe. We find that the solutions obtained by us include the solutions obtained in the standard general relativity (GR) theory. Therefore, it is more general to describe the evolution of the universe in the thermodynamic way. (c) 2018 The Authors. Published by Elsevier B.V.

引用

页码：411 / 416

页数：6

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