A Gravity Dual of Ultra-slow Roll Inflation

Understand

We study time-dependent deformations of a certain class of backgrounds in type IIB supergravity.

• These backgrounds are solutions of a five-dimensional consistent truncation, relevant for gauge/gravity duality, which have the form of dS_4 foliations over a fifth (radial) direction.
• We investigate time-dependent deformations of those solutions in the search for gravitational duals of models of glueball inflation.
• A particular starting ansatz enables us to find a class of analytical solutions, corresponding to an ultra-slow roll inflationary regime.