New Bondi-type outgoing boundary condition for the Einstein equations with cosmological constant
文献类型：期刊论文
| 作者 | He, Xiaokai1; Cao, Zhoujian2
|
| 刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS D
 |
| 出版日期 | 2015-09-01 |
| 卷号 | 24期号:10页码:14 |
| 关键词 | Bondi-Sachs coordinate cosmological constant gravitational wave |
| ISSN号 | 0218-2718 |
| DOI | 10.1142/S0218271815500819 |
| 英文摘要 | In the middle of last century, Bondi and his coworkers proposed an outgoing boundary condition for the Einstein equations. Recently, more and more observations imply that the Einstein equations should include a nonzero cosmological constant. A spacetime with a positive cosmological constant approaches to a de Sitter space asymptotically. Bondi's original boundary condition is not valid for these asymptotically de Sitter spacetimes. But the traditional conformally flat boundary condition excludes the gravitational radiation for the asymptotically de Sitter spacetimes. In this work, a new Bondi-type outgoing boundary condition based on Bondi-Sachs coordinates is considered. With this new boundary condition, the gravitational wave behavior for the asymptotically de Sitter spacetime is similar to the one for the asymptotically Minkowski spacetime. The traditional conformally flat boundary condition falls into a special subclass of the new boundary condition. |
| 资助项目 | NSFC[11375260] ; NSFC[11401199] ; Research Foundation of Education Bureau of Hunan Province, China[14C0254] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000359723100014 |
| 出版者 | WORLD SCIENTIFIC PUBL CO PTE LTD |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/20534]  |
| 专题 | 应用数学研究所 |
| 通讯作者 | Cao, Zhoujian |
| 作者单位 | 1.Hunan First Normal Univ, Sch Math & Computat Sci, Changsha 410205, Hunan, Peoples R China 2.Chinese Acad Sci, Acad Math & Syst Sci, Inst Appl Math, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Xiaokai,Cao, Zhoujian. New Bondi-type outgoing boundary condition for the Einstein equations with cosmological constant[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D,2015,24(10):14. |
| APA | He, Xiaokai,&Cao, Zhoujian.(2015).New Bondi-type outgoing boundary condition for the Einstein equations with cosmological constant.INTERNATIONAL JOURNAL OF MODERN PHYSICS D,24(10),14. |
| MLA | He, Xiaokai,et al."New Bondi-type outgoing boundary condition for the Einstein equations with cosmological constant".INTERNATIONAL JOURNAL OF MODERN PHYSICS D 24.10(2015):14. |
入库方式： OAI收割
来源：数学与系统科学研究院
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