Comments on joint terms in gravitational action
文献类型：期刊论文
| 作者 | Yang, RQ; Yang, RQ (reprint author), Korea Inst Adv Study, Quantum Univ Ctr, Seoul 130722, South Korea.; Ruan, SM |
| 刊名 | CLASSICAL AND QUANTUM GRAVITY
 |
| 出版日期 | 2017 |
| 卷号 | 34期号:17页码:175017 |
| 关键词 | Action In Gravity Theory Joint Terms Piecewise Smooth Boundary |
| DOI | http://dx.doi.org/10.1088/1361-6382/aa8053 |
| 英文摘要 | This paper compares three different methods of computing joint terms in the on-shell action of gravity, which are identifying the joint term by the variational principle in the Dirichlet boundary condition, treating the joint term as the limit contribution of a smooth boundary and finding the joint term by local SO(1, d - 1) transformation. In general metric gravitational theory, we show that the differences between these joint terms are variational invariants under a fixed boundary condition. We also give an explicit condition to judge the existence of a joint term determined by the variational principle and apply it to general relativity as an example. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21974]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Yang, RQ (reprint author), Korea Inst Adv Study, Quantum Univ Ctr, Seoul 130722, South Korea. |
| 推荐引用方式 GB/T 7714 | Yang, RQ,Yang, RQ ,Ruan, SM. Comments on joint terms in gravitational action[J]. CLASSICAL AND QUANTUM GRAVITY,2017,34(17):175017. |
| APA | Yang, RQ,Yang, RQ ,&Ruan, SM.(2017).Comments on joint terms in gravitational action.CLASSICAL AND QUANTUM GRAVITY,34(17),175017. |
| MLA | Yang, RQ,et al."Comments on joint terms in gravitational action".CLASSICAL AND QUANTUM GRAVITY 34.17(2017):175017. |
入库方式： OAI收割
来源：理论物理研究所
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