Emergent universe scenario, bouncing universes, and cyclic universes in degenerate massive gravity

被引：17

作者：

Li, Shou-Long ^{[1
,2
,3
,4
]}

Lu, H. ^{[4
]}

Wei, Hao ^{[3
]}

Wu, Puxun ^{[1
,2
]}

Yu, Hongwei ^{[1
,2
]}

机构：

[1] Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China

[2] Hunan Normal Univ, Synerget Innovat Ctr Quantum Effect & Applicat, Changsha 410081, Hunan, Peoples R China

[3] Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China

[4] Tianjin Univ, Ctr Joint Quantum Studies, Sch Sci, Tianjin 300350, Peoples R China

来源：

PHYSICAL REVIEW D | 2019年 / 99卷 / 10期

关键词：

EINSTEIN STATIC UNIVERSE; STABILITY; COSMOLOGY; ENTROPY;

D O I：

10.1103/PhysRevD.99.104057

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider alternative inflationary cosmologies in massive gravity with degenerate reference metrics and study the feasibilities of the emergent universe scenario, bouncing universes, and cyclic universes. We focus on the construction of the Einstein static universe, classes of exact solutions of bouncing universes, and cyclic universes in degenerate massive gravity. We further study the stabilities of the Einstein static universe against both homogeneous and inhomogeneous scalar perturbations and give the parameters region for a stable Einstein static universe.

引用

页数：15

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