Bifid Throats for Axion Monodromy Inflation

Retolaza, Ander; Uranga, Angel M.; Westphal, Alexander

Report/Internal Report

PUBDB-2015-02013

Bifid Throats for Axion Monodromy Inflation

Retolaza, A. (Corresponding Author) ; Uranga, A. M. ; Westphal, A.DESY*

2015

Red Report 33 p. (2015)

This record in other databases:

Report No.: DESY-15-048; FTUAM-15-9; IFT-UAM/CSIC-15-030; arXiv:1504.02103

Abstract: 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 \mathbb{Z}_3 \times \mathbb{Z}_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.

Keyword(s): duality: holography ; gauge field theory: duality ; membrane model: fractional ; inflaton: potential ; throat ; back reaction ; monodromy ; axion ; orbifold