Bulg. J. Phys. vol.44 no.1 (2017), pp. 048-056

On Slow-roll Glueball Inflation from Holography

L. Anguelova
Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, 1784 Sofia, Bulgaria
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 dS4 fibration over a fifth dimension. We find a new time-dependent deformation around this solution, which allows for a small η parameter of the corresponding inflationary model. This resolves a problem with a previous solution that allowed only η of order one and thus gave only an ultra-slow roll regime, but not regular slow roll.

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