Inflation coupled to a Gauss-Bonnet term
文献类型：期刊论文
| 作者 | Guo, ZK
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2013 |
| 卷号 | 88期号:12页码:123508 |
| 关键词 | DARK ENERGY COSMOLOGY GRAVITY MODELS UNIVERSE DILATON BULK |
| ISSN号 | 1550-7998 |
| 通讯作者 | Jiang, PX (reprint author), Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China. |
| 英文摘要 | The newly released Planck cosmic microwave background data place tight constraints on slow-roll inflationary models. Some commonly discussed inflationary potentials are disfavored due mainly to the large tensor-to-scalar ratio. In this paper we show that these potentials may be in good agreement with the Planck data when the inflaton has a nonminimal coupling to the Gauss-Bonnet term. Moreover, such a coupling violates the consistency relation between the tensor spectral index and tensor-to-scalar ratio. If the tensor spectral index is allowed to vary freely, the Planck constraints on the tensor-to-scalar ratio are slightly improved. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | Chinese Academy of Science, NSFC [11175225]; National Basic Research Program of China [2010CB832805] |
| 原文出处 | http://dx.doi.org/10.1103/PhysRevD.88.123508 |
| 语种 | 英语 |
| WOS记录号 | WOS:000328602900007 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15211]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Guo, ZK. Inflation coupled to a Gauss-Bonnet term[J]. PHYSICAL REVIEW D,2013,88(12):123508. |
| APA | Guo, ZK.(2013).Inflation coupled to a Gauss-Bonnet term.PHYSICAL REVIEW D,88(12),123508. |
| MLA | Guo, ZK."Inflation coupled to a Gauss-Bonnet term".PHYSICAL REVIEW D 88.12(2013):123508. |
入库方式： OAI收割
来源：理论物理研究所
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