Higgs-otic Inflation and Moduli Stabilization

Abstract

We study closed-string moduli stabilization in Higgs-otic inflation in Type IIB orientifold backgrounds with fluxes. In this setup large-field inflation is driven by the vacuum energy of mobile D7-branes. Imaginary selfdual (ISD) three-form fluxes in the background source a $\mu$-term and the necessary monodromy for large field excursions while imaginary anti-selfdual (IASD) three-form fluxes are sourced by non-perturbative contributions to the superpotential necessary for moduli stabilization. We analyze Kähler moduli stabilization and backreaction on the inflaton potential in detail. Confirming results in the recent literature, we find that integrating out heavy Kähler moduli leads to a controlled flattening of the inflaton potential. We quantify the flux tuning necessary for stability even during large-field inflation. Moreover, we study the backreaction of supersymmetrically stabilized complex structure moduli and the axio-dilaton in the Kähler metric of the inflaton. Contrary to previous findings, this backreaction can be pushed far out in field space if a similar flux tuning as in the Kähler sector is possible. This allows for a trans-Planckian field range large enough to support inflation.

42 pages, 10 figures, v2: comments and references added. Published version

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• Infinite Distances in Field Space and Massless Towers of States
• The Weak Gravity Conjecture and Scalar Fields
• The Swampland Distance Conjecture for Kahler moduli
• The Swampland Conjecture and F-term Axion Monodromy Inflation
• The Refined Swampland Distance Conjecture in Calabi-Yau Moduli Spaces
• Asymptotic Flux Compactifications and the Swampland
• Swampland Distance Conjecture, Inflation and $\alpha$-attractors
• Small Cosmological Constants in String Theory
• The Type IIA Flux Potential, 4-forms and Freed-Witten anomalies
• Detuning primordial black hole dark matter with early matter domination and axion monodromy
• Mass Hierarchies and Dynamical Field Range
• Flux Flattening in Axion Monodromy Inflation
• Inflation, Higher Spins and the Swampland
• Universal Axion Backreaction in Flux Compactifications
• Inflation as an Information Bottleneck - A strategy for identifying universality classes and making robust predictions
• Superspace Higher Derivative Terms in Two Dimensions
• Higher-derivative supersymmetric effective field theories