Weak Gravity Conjecture with Large Extra Dimensions

TL;DR

This paper explores how large extra dimensions affect the weak gravity conjecture, leading to stricter constraints on the UV cutoff of U(1) gauge theories, with potential implications for LHC physics.

Contribution

It introduces a modified weak gravity conjecture in the context of large extra dimensions, establishing new constraints on the UV cutoff relevant to collider experiments.

Findings

Stronger UV cutoff constraints in theories with large extra dimensions.

Potential relevance of these constraints to LHC energy scales.

Implications for the validity of U(1) gauge theories in higher-dimensional setups.

Abstract

In the presence of large extra dimensions, the fundamental Planck scale can be much lower than the apparent four-dimensional Planck scale. In this setup, the weak gravity conjecture implies a much more stringent constraint on the UV cutoff for the U(1) gauge theory in four dimensions. This new energy scale may be relevant to LHC.