Knowledge Management System of Institute of Theoretical Physics, CAS
Jiang, PX; Hu, JW; Guo, ZK ; Jiang, PX (reprint author), Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China.
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| Inflation coupled to a Gauss-Bonnet term | |
| Source Publication | PHYSICAL REVIEW D
 |
| Language | 英语 |
| Keyword | Dark Energy Cosmology Gravity Models Universe Dilaton Bulk |
| Abstract | 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. |
| 2013 | |
| ISSN | 1550-7998 |
| Volume | 88Issue:12Pages:123508 |
| Subject Area | Physics |
| Indexed By | SCI |
| Funding Organization | Chinese Academy of Science, NSFC [11175225]; National Basic Research Program of China [2010CB832805] ; Chinese Academy of Science, NSFC [11175225]; National Basic Research Program of China [2010CB832805] ; Chinese Academy of Science, NSFC [11175225]; National Basic Research Program of China [2010CB832805] ; Chinese Academy of Science, NSFC [11175225]; National Basic Research Program of China [2010CB832805] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/15211 |
| Collection | SCI期刊论文 |
| Corresponding Author | Jiang, PX (reprint author), Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China. |
| Recommended Citation GB/T 7714 | Jiang, PX,Hu, JW,Guo, ZK,et al. Inflation coupled to a Gauss-Bonnet term[J]. PHYSICAL REVIEW D,2013,88(12):123508. |
| APA | Jiang, PX,Hu, JW,Guo, ZK,&Jiang, PX .(2013).Inflation coupled to a Gauss-Bonnet term.PHYSICAL REVIEW D,88(12),123508. |
| MLA | Jiang, PX,et al."Inflation coupled to a Gauss-Bonnet term".PHYSICAL REVIEW D 88.12(2013):123508. |
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