| 题名 | Unattainable extended spacetime regions in conformal gravity |
| 作者 | |
| 通讯作者 | Bambi, Cosimo |
| 发表日期 | 2018-03-05
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| DOI | |
| 发表期刊 | |
| ISSN | 1029-8479
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| 期号 | 3 |
| 摘要 | The Janis-Newman-Winicour metric is a solution of Einstein's gravity minimally coupled to a real massless scalar field. The gamma-metric is instead a vacuum solution of Einstein's gravity. Both spacetimes have no horizon and possess a naked singularity at a finite value of the radial coordinate, where curvature invariants diverge and the spacetimes are geodetically incomplete. In this paper, we reconsider these solutions in the framework of conformal gravity and we show that it is possible to solve the spacetime singularities with a suitable choice of the conformal factor. Now curvature invariants remain finite over the whole spacetime. Massive particles never reach the previous singular surface and massless particles can never do it with a finite value of their affine parameter. Our results support the conjecture according to which conformal gravity can fix the singularity problem that plagues Einstein's gravity. |
| 关键词 | |
| 相关链接 | [来源记录] |
| 收录类别 | |
| 语种 | 英语
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| 重要成果 | NI论文
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| 学校署名 | 其他
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| 资助项目 | China Scholarship Council (CSC)[2017GXZ019020]
; China Scholarship Council (CSC)[2017GXZ019022]
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| WOS研究方向 | Physics
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| WOS类目 | Physics, Particles & Fields
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| WOS记录号 | WOS:000426797700003
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| 出版者 | |
| ESI学科分类 | PHYSICS
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| 来源库 | Web of Science
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| 引用统计 |
被引频次[WOS]：23
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| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/27944 |
| 专题 | 理学院_物理系 |
| 作者单位 | 1.Fudan Univ, Ctr Field Theory & Particle Phys, 2005 Songhu Rd, Shanghai 200438, Peoples R China 2.Fudan Univ, Dept Phys, 2005 Songhu Rd, Shanghai 200438, Peoples R China 3.Eberhard Karls Univ Tubingen, Theoret Astrophys, Morgenstelle 10, D-72076 Tubingen, Germany 4.Southern Univ Sci & Technol SUSTech, Dept Phys, 1088 Xueyuan Rd, Shenzhen 518055, Peoples R China |
| 推荐引用方式 GB/T 7714 |
Chakrabarty, Hrishikesh,Benavides-Gallego, Carlos A.,Bambi, Cosimo,et al. Unattainable extended spacetime regions in conformal gravity[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(3).
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| APA |
Chakrabarty, Hrishikesh,Benavides-Gallego, Carlos A.,Bambi, Cosimo,&Modesto, Leonardo.(2018).Unattainable extended spacetime regions in conformal gravity.JOURNAL OF HIGH ENERGY PHYSICS(3).
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| MLA |
Chakrabarty, Hrishikesh,et al."Unattainable extended spacetime regions in conformal gravity".JOURNAL OF HIGH ENERGY PHYSICS .3(2018).
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| 条目包含的文件 | 条目无相关文件。 | |||||
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