Monodromy Charge in D7-brane Inflation
Dec 9, 2018Citations per year
Abstract: (Springer)
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.Note:
- 31 pages
- D-branes
- Flux compactifications
- monodromy: charge
- D-brane: 7
- inflation
- axion
- back reaction
- superpotential: nonperturbative
- inflaton: potential
- charge: induced
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