We continue the investigation of F-term axion monodromy inflation in string
theory, while seriously taking the issue of moduli stabilization into account.
For a number of closed and open string models, we show that they suffer from
serious control issues once one is trying to realize trans-Planckian field
excursions. More precisely, the flux tuning required to delay the logarithmic
scaling of the field distance to a trans-Planckian value cannot be done without
leaving the regime where the employed effective supergravity theory is under
control. Read More