Dynamical scalar degree of freedom in Horcava-Lifshitz gravity
文献类型：期刊论文
| 作者 | Cai, RG ; Hu, B ; Zhang, HB |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2009 |
| 卷号 | 80期号:4 |
| 关键词 | MASSIVE GAUGE-THEORIES PHYSICS |
| ISSN号 | 1550-7998 |
| 通讯作者 | Cai, RG: Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China. |
| 中文摘要 | We investigate the linear cosmological perturbations of Horcava-Lifshitz gravity in a Friedmann-Robertson-Walker universe without any matter. Our results show that a new gauge-invariant dynamical scalar mode emerges, due to the gauge transformation under the "foliation-preserving" diffeomorphism and "projectability condition," and it can produce a scale invariant power spectrum. In the infrared regime with lambda=1, the dynamical scalar degree of freedom turns to be a nondynamical one at the linear order level. |
| 收录类别 | SCI |
| 资助信息 | Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/36281]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Cai, RG,Hu, B,Zhang, HB. Dynamical scalar degree of freedom in Horcava-Lifshitz gravity[J]. PHYSICAL REVIEW D,2009,80(4). |
| APA | Cai, RG,Hu, B,&Zhang, HB.(2009).Dynamical scalar degree of freedom in Horcava-Lifshitz gravity.PHYSICAL REVIEW D,80(4). |
| MLA | Cai, RG,et al."Dynamical scalar degree of freedom in Horcava-Lifshitz gravity".PHYSICAL REVIEW D 80.4(2009). |
入库方式： OAI收割
来源：物理研究所
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