Bifid throats for axion monodromy inflation

  • Ander RetolazaEmail author
  • Angel M. Uranga
  • Alexander Westphal
Open Access
Regular Article - Theoretical Physics


We construct a simple explicit local geometry providing a ‘bifid throat’ for 5-brane axion monodromy. A bifid throat is a throat that splits into two daughter throats in the IR, containing a homologous 2-cycle family reaching down into each daughter throat. Our example consists of a deformed 3 × 2 orbifold of the conifold, which provides us with an explicit holographic dual of the bifid throat including D3-branes and fractional 5-branes at the toric singularities of our setup. Having the holographic description in terms of the dual gauge theory allows us to address the effect of 5-brane-antibrane pair backreaction including the warping effects. This leads to the size of the backreaction being small and controllable after imposing proper normalization of the inflaton potential and hence the warping scales.


Flux compactifications Gauge-gravity correspondence Cosmology of Theories beyond the SM D-branes 


Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.


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Copyright information

© The Author(s) 2015

Authors and Affiliations

  • Ander Retolaza
    • 1
    • 2
    Email author
  • Angel M. Uranga
    • 1
  • Alexander Westphal
    • 3
  1. 1.Instituto de Fisica Teórica IFT-UAM/CSICUniversidad Autónoma de MadridMadridSpain
  2. 2.Departamento de Fisica TeóricaUniversidad Autónoma de MadridMadridSpain
  3. 3.Deutsches Elektronen-Synchrotron, DESYHamburgGermany

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