Emergence of space and the general dynamic equation of the Friedmann-Robertson-Walker universe

被引：16

作者：

Ai, Wen-Yuan ^{[1
]}

Hu, Xian-Ru ^{[1
]}

Chen, Hua ^{[1
]}

Deng, Jian-Bo ^{[1
]}

机构：

[1] Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China

来源：

PHYSICAL REVIEW D | 2013年 / 88卷 / 08期

关键词：

ENTROPY;

D O I：

10.1103/PhysRevD.88.084019

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A novel idea-that the cosmic acceleration can be understood from the perspective that spacetime dynamics is an emergent phenomenon-was proposed by T. Padmanabhan. The Friedmann equations of a Friedmann-Robertson-Walker universe can be derived from different gravity theories with different modifications of Padmanabhan's proposal. In this paper, a unified formula is proposed, in which those modifications can be treated as special cases when the formula is applied to different universe radii. Furthermore, the dynamic equations of a Friedmann-Robertson-Walker universe in the f(R) theory and deformed Horava-Lifshitz theory are investigated. The results show the validity of our proposed formula.

引用

页数：6

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