Smooth String Vacua in a Gravitationally Non-perturbative Regime

2025/11/03 by Cvetič, Mirjam, Wiesner, Max
#FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th)

paper · doi:10.48550/arxiv.2511.01975

Abstract

The strong coupling regime of four-dimensional N=2 supersymmetric vacua of the heterotic string is analyzed from a dual domain wall perspective. Using modular invariance, we compute a closed form for the non-perturbative corrections to the supersymmetric domain wall equations, which enables a quantitative study of gravitational strong coupling regimes. A strong coupling singularity for the hidden Horava-Witten 9-brane is resolved, and the domain wall interpolates between the visible 9-brane and a supersymmetric Anti-de Sitter vacuum, thereby realizing a variant of the Randall-Sundrum model.

Citations

• Emergent Strings in Type IIB Calabi--Yau Compactifications
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Related

• Non-perturbative Resolution of Strong Coupling Singularities in 4d N=1 Heterotic/M-theory
• Non-perturbative string connections
• Spacetime aspects of non-supersymmetric strings
• Domain Walls and the Universe
• On De Sitter Vacua in Strongly Coupled Heterotic String Theory