Reconstruction of constant slow-roll inflation

• 来源期刊: 中国科学:物理学 力学 天文学（英文版）
• 年，卷（期）: 2017,（9）
• 页码范围: 17-21
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s11433-017-9065-4

摘要

Using the relations between the slow-roll parameters and the power spectra for the single field slow-roll inflation,we derive the scalar spectral tilt ns and the tensor to scalar ratio r for the constant slow-roll inflation,and obtain the constraint on the slow-roll parameter ηfrom the Planck 2015 results.The inflationary potential for the constant slow-roll inflation is then reconstructed in the framework of both general relativity and the scalar-tensor theory of gravity,and compared with the recently reconstructed E model potential.In the strong coupling limit,we show that the η attractor is reached.