Inflation driven by a holographic energy density

Understand

In this letter we study a model of inflation in which the inflationary regimen comes from a type of holographic energy density.

• In particular, we consider the Granda-Oliveros proposal for the holographic energy density, which contains two free dimensionless parameters, $\alpha$ and $\beta$.
• This holographic energy density is associated to the so-called Granda-Oliveros infrared cutoff (G-O cutoff).
• Additionally, since in the inflationary regimen the energy scales are very high, it is necessary to modify the G-O cutoff taking into account a correction due to the ultraviolet cutoff.