PT Journal
AU Barenboim, G
   Park, WI
TI Spiral inflation
SO Physics Letters B
JI Phys. Lett. B
PY 2015
BP 252
EP 255
VL 741
DI 10.1016/j.physletb.2014.12.042
LA English
AB 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 similar to 0.1) without fine tuning. The inflationary observables perfectly match Planck data.
ER