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 swampland is the set of seemingly consistent low-energy effective field theories that
cannot be consistently coupled to quantum gravity. In this review we cover some of the …

A bstract We propose a generalisation of the Weak Gravity Conjecture in the presence of
scalar fields. The proposal is guided by properties of extremal black holes in\(\mathcal {N} …

A bstract We conjecture that in a consistent supergravity theory with non-vanishing gravitino
mass, the limit m 3/2→ 0 is at infinite distance. In particular one can write M tower~\({m} …

A bstract The Swampland Distance Conjecture states that at infinite distance in the scalar
moduli space an infinite tower of particles become exponentially massless. We study this …

A bstract We describe a new phenomenon in quantum cosmology: self-organised
localisation. When the fundamental parameters of a theory are functions of a scalar field …

A bstract We look for signals of critical behavior in the Yukawa sector. By reviewing a set of
models for the fermion masses, we select those where a symmetry-breaking order …

A bstract The Weak Gravity Conjecture (WGC) demands the existence of superextremal
particles in any consistent quantum theory of gravity. The standard lore is that these particles …

A bstract We propose a new version of the scalar Weak Gravity Conjecture (WGC) which
would apply to any scalar field coupled to quantum gravity. For a single scalar it is given by …

A bstract Recent string theory tests of swampland ideas like the distance or the dS
conjectures have been performed at weak coupling. Testing these ideas beyond the weak …