| 题名 | Geodesic completeness, cosmological bounces, and inflation |
| 作者 | |
| 通讯作者 | Garcia-Saenz, Sebastian |
| 发表日期 | 2024-09-18
|
| DOI | |
| 发表期刊 | |
| ISSN | 2470-0010
|
| EISSN | 2470-0029
|
| 卷号 | 110期号:6 |
| 摘要 | The question of geodesic completeness of cosmological spacetimes has recently received renewed scrutiny. A particularly interesting result is the observation that the well-known Borde-Guth-Vilenkin (BGV) theorem may misdiagnose geodesically complete cosmologies. We propose a simple amendment to the BGV theorem which addresses such loopholes while retaining much of its generality. We give straightforward proofs of some recently offered conjectures concerning (generalized) Friedmann-Lema & icirc;treRobertson-Walker spacetimes; geodesic completeness implies (i) the existence of a bounce, loitering phase or an emergent cosmology, and (ii) a phase of accelerated expansion with strictly increasing Hubble rate. Our results are purely kinematic and do not assume general relativity or energy conditions. |
| 相关链接 | [来源记录] |
| 收录类别 | |
| 语种 | 英语
|
| 学校署名 | 第一
; 通讯
|
| 资助项目 | NSFC Research Fund for International Scientists[12250410250]
|
| WOS研究方向 | Astronomy & Astrophysics
; Physics
|
| WOS类目 | Astronomy & Astrophysics
; Physics, Particles & Fields
|
| WOS记录号 | WOS:001318370200015
|
| 出版者 | |
| ESI学科分类 | PHYSICS
|
| 来源库 | Web of Science
|
| 引用统计 | |
| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/834310 |
| 专题 | 理学院_物理系 |
| 作者单位 | Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China |
| 第一作者单位 | 物理系 |
| 通讯作者单位 | 物理系 |
| 第一作者的第一单位 | 物理系 |
| 推荐引用方式 GB/T 7714 |
Garcia-Saenz, Sebastian,Hua, Junjie,Zhao, Yunke. Geodesic completeness, cosmological bounces, and inflation[J]. PHYSICAL REVIEW D,2024,110(6).
|
| APA |
Garcia-Saenz, Sebastian,Hua, Junjie,&Zhao, Yunke.(2024).Geodesic completeness, cosmological bounces, and inflation.PHYSICAL REVIEW D,110(6).
|
| MLA |
Garcia-Saenz, Sebastian,et al."Geodesic completeness, cosmological bounces, and inflation".PHYSICAL REVIEW D 110.6(2024).
|
| 条目包含的文件 | 条目无相关文件。 | |||||
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