The Swampland program aims to distinguish effective theories which can be completed into
quantum gravity in the ultraviolet from those which cannot. This article forms an introduction …

The Weak Gravity Conjecture holds that in a theory of quantum gravity, any gauge force
must mediate interactions stronger than gravity for some particles. This statement has …

A bstract The Distance Conjecture holds that any infinite-distance limit in the scalar field
moduli space of a consistent theory of quantum gravity must be accompanied by a tower of …

We propose to sharpen the weak gravity conjecture by the statement that, except for BPS
states in a supersymmetric theory, the gravitational force is strictly weaker than any electric …

A bstract We test various conjectures about quantum gravity for six-dimensional string
compactifications in the framework of F-theory. Starting with a gauge theory coupled to …

This book lays out the scientific goals to be addressed by the next-generation ground-based
cosmic microwave background experiment, CMB-S4, envisioned to consist of dedicated …

We prove a version of the Weak Gravity Conjecture for 6d F-theory or heterotic string
compactifications with 8 supercharges. This sharpens our previous analysis by including …

A bstract We investigate the behavior of the Weak Gravity Conjecture (WGC) under toroidal
compactification and RG flows, finding evidence that WGC bounds for single photons …

A bstract We analyze the charge-to-mass structure of BPS states in general infinite-distance
limits of\(\mathcal {N}\)= 2 compactifications of Type IIB string theory on Calabi-Yau three …

A bstract The Weak Gravity Conjecture postulates the existence of superextremal charged
particles, ie those with mass smaller than or equal to their charge in Planck units. We …