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Monodromy charge in D7-brane inflation
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Journal Article
Monodromy charge in D7-brane inflation
2020
Overview
A
bstract
In axion monodromy inflation, traversing
N
axion periods corresponds to discharging
N
units of a quantized charge. In certain models with moving D7-branes, such as Higgs-otic inflation, this monodromy charge is D3-brane charge induced on the D7-branes. The stress-energy of the induced charge affects the internal space, changing the inflaton potential and potentially limiting the field range. We compute the backreaction of induced D3-brane charge in Higgs-otic inflation. The effect on the nonperturbative superpotential is dramatic even for
N
= 1, and may preclude large-field inflation in this model in the absence of a mechanism to control the backreaction.
Publisher
Springer Berlin Heidelberg,SpringerOpen
