62 citations · 113 across the 2 of their papers we have counts for
Showing hep-thShow all
3 papers · 1 filter
hep-th2019
Mild Non-Gaussianities under Perturbative Control from Rapid-Turn Inflation Models
Theodor Bjorkmo, Ricardo Z. Ferreira, M. C. David Marsh
Inflation can be supported in very steep potentials if it is generated by rapidly turning fields, which can be natural in negatively curved field spaces. The curvature perturbation…
hep-th2019★ 62 cited
The rapid-turn inflationary attractor
Theodor Bjorkmo
We prove the existence of a general class of rapidly turning two-field inflationary attractors. By only requiring a large, slowly varying turn rate, we solve the system completely…
hep-th2019★ 51 cited
Hyperinflation generalised: from its attractor mechanism to its tension with the `swampland conjectures'
Theodor Bjorkmo, M. C. David Marsh
In negatively curved field spaces, inflation can be realised even in steep potentials. Hyperinflation invokes the `centrifugal force' of a field orbiting the hyperbolic plane to su…