Dynamical scalar degree of freedom in Horcava-Lifshitz gravity
文献类型：期刊论文
| 作者 | Cai, Rong-Gen ; Hu, Bin; Zhang, Hong-Bo; Cai, RG , Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2009 |
| 卷号 | 80期号:4页码:- |
| 关键词 | Massive Gauge-theories Physics |
| ISSN号 | 1550-7998 |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000269641400001 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5266]  |
| 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 | Cai, RG , Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Rong-Gen,Hu, Bin,Zhang, Hong-Bo,et al. Dynamical scalar degree of freedom in Horcava-Lifshitz gravity[J]. PHYSICAL REVIEW D,2009,80(4):-. |
| APA | Cai, Rong-Gen,Hu, Bin,Zhang, Hong-Bo,&Cai, RG , Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.(2009).Dynamical scalar degree of freedom in Horcava-Lifshitz gravity.PHYSICAL REVIEW D,80(4),-. |
| MLA | Cai, Rong-Gen,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：理论物理研究所
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