Capturability of nonperturbative singularity-resolution effects within low-energy EFT

Determine whether nonperturbative quantum-gravity effects that can resolve black hole singularities are representable within a low-energy effective field theory of gravity, or whether such effects necessarily lie beyond the EFT framework.

Background

Various nonperturbative approaches, including loop quantum gravity and string-theoretic constructions, suggest singularity resolution driven by fundamentally quantum effects.

The authors explicitly state uncertainty about whether such effects can be encoded within a low-energy EFT description, and proceed to analyze higher-curvature corrections. Their results argue against resolution within EFT, but the question of EFT’s ability to capture nonperturbative resolution effects is explicitly posed as unclear.