2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/109970We find a general model of {\em single-field} inflation within the context of type IIB string theory compactified on large volume Calabi-Yau orientifolds with $h^{2,1} > h^{1,1} = 2$. The inflaton is the axion part of the complexified Kähler moduli and the resulting scalar power spectrum is red, and can easily be made compatible with WMAP3 bounds on $n_s$. This model overcomes the $η$-problem using gaugino condensates on wrapped D7-brane while keeping the tuning of the parameters minimal.4 pages, 2 figures, RevTexHigh Energy Physics - Theorytext