Monodromy Charge in D7-brane Inflation

Abstract

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.

31 pages

References in corpus (2)

• On the Geometry of the String Landscape and the Swampland
• Towards de Sitter from 10D

Cited by in corpus (3)

• AdS and the Swampland
• Large Field Ranges from Aligned and Misaligned Winding
• Dynamical Tadpoles and Weak Gravity Constraints