http://arxiv.org/abs/1412.2724
We propose a novel scenario of primordial inflation in which the inflaton goes through a spiral motion starting from around the top of a symmetry breaking potential. We show that, even though inflation takes place for a field value much smaller than Planck scale, it is possible to obtain relatively large tensor to scalar ratio ($r \sim 0.1$) without fine tuning. The inflationary observables perfectly match Planck data.
G. Barenboim and W. Park
Tue, 9 Dec 14
49/64
Comments: 5 pages, 7 figures