Enhancement of axion decay constants in type IIA theory?

@article{Goswami2018EnhancementOA,
  title={Enhancement of axion decay constants in type IIA theory?},
  author={Gaurav Goswami},
  journal={Physical Review D},
  year={2018}
}
We investigate the possibility of enhancement of effective axion decay constant in well controlled constructions in string theory. To this end, we study the dynamics of axions arising in the compactifications of type IIA string theory on Calabi-Yau orientifolds with background fluxes (with non-perturbative effects included to ensure stabilization of all moduli). In this setup, we attempt to obtain large effective axion decay constant in two different ways: by searching for a direction in field… 
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