Natural cliff inflation [CL]

http://arxiv.org/abs/1711.08270


We propose a novel scenario of inflation, in which the inflaton is identified as the lightest mode of an angular field in a compactified fifth dimension. The periodic effective potential exhibits exponentially flat plateaus, so that a sub-Planckian field excursion without hilltop initial conditions is naturally realized. We can obtain consistent predictions with observations on the spectral index and the tensor-to-scalar ratio.

Read this paper on arXiv…

J. Gong and C. Shin
Thu, 23 Nov 17
23/52

Comments: 5 pages, 2 figures