Single field inflation with modulated potential in light of Planck and BICEP2
文献类型：期刊论文
| 作者 | Wan YP(万友平); Li SY(李思宇) ; Wan, YP; Li, SY; Li, MZ; Qiu, TT; Cai, YF; Zhang, XM;张新民
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| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2014 |
| 卷号 | 90期号:2页码:23537 |
| 英文摘要 | The recently released BICEP2 data detected the primordial B-mode polarization in the cosmic microwave background (CMB) map which strongly supports for a large tensor-to-scalar ratio, and, thus, is found to be in tension with the Planck experiment with no evidence of primordial gravitational waves. Such an observational tension, if confirmed by forthcoming measurements, would bring a theoretical challenge for the very early Universe models. To address this issue, we revisit a single field inflation model proposed by Wang et al. [Int. J. Mod. Phys. D 14, 1347 (2005)] and Feng et al. [Phys. Rev. D 68, 103511 (2003)] which includes a modulated potential. We show that this inflation model can give rise to a sizable negative running behavior for the spectral index of primordial curvature perturbation and a large tensor-to-scalar ratio. Applying these properties, our model can nicely explain the combined Planck and BICEP2 observations. To examine the validity of analytic calculations, we numerically confront the predicted temperature and B-mode power spectra with the latest CMB observations and explicitly show that our model is consistent with the current data. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000339618400005 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/225280]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Wan YP,Li SY,Wan, YP,et al. Single field inflation with modulated potential in light of Planck and BICEP2[J]. PHYSICAL REVIEW D,2014,90(2):23537. |
| APA | 万友平.,李思宇.,Wan, YP.,Li, SY.,Li, MZ.,...&Zhang, XM；张新民.(2014).Single field inflation with modulated potential in light of Planck and BICEP2.PHYSICAL REVIEW D,90(2),23537. |
| MLA | 万友平,et al."Single field inflation with modulated potential in light of Planck and BICEP2".PHYSICAL REVIEW D 90.2(2014):23537. |
入库方式： OAI收割
来源：高能物理研究所
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