Aligned Natural Inflation in String Theory

@article{Long2014AlignedNI,
  title={Aligned Natural Inflation in String Theory},
  author={Cody Long and Liam McAllister and Pauline McGuirk},
  journal={Physical Review D},
  year={2014},
  volume={90},
  pages={023501}
}
The authors discuss type IIB string theory realizations of Kim-Nilles-Peloso (KNP) multiple axion inflation, which provides a super-Planckian effective axion decay constant, necessary for UV stable realistic slow roll inflation. 

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arXiv:1212.5226 [astro-ph.CO]; P

  • (WMAP), Astrophys.J.Suppl. 208,
  • 2013

JCAP 0501

  • 005
  • 2005

and E

  • Witten, Nucl.Phys. B584, 69
  • 2000

JCAP 1006

  • 009
  • 2010

JHEP 1405

  • 144 (2014), arXiv:1403.0410 [hep-ph]; (2014), 10.1016/j.physletb.2014.05.041, arXiv:1403.5883 [hep-ph]; T. Higaki and F. Takahashi,
  • 2014

JCAP 1205

  • 017
  • 2012

JHEP 0606

  • 051
  • 2006

and T

  • Weigand, Phys.Rev. D84, 066001
  • 2011

and H

  • P. Nilles,
  • 2014