On Slow-roll Glueball Inflation from Holography

Abstract

We investigate glueball inflation model-building via the methods of the gauge/gravity duality. For that purpose, we consider a certain 5d consistent truncation of type IIB supergravity. This theory admits a solution, whose metric is of the form of a $d{S}_4$ fibration over a fifth dimension. We find a new time-dependent deformation around this solution, which allows for a small $\eta$ parameter of the corresponding inflationary model. This resolves a problem with a previous solution that allowed only $\eta$ of order one and thus gave only an ultra-slow roll regime, but not regular slow roll.

9 pages, contribution to the proceedings of the 3rd Bulgarian National Congress on Physical Sciences, Sofia, 2016

References in corpus (2)

• Minimal Composite Inflation
• A Gravity Dual of Ultra-slow Roll Inflation