The species scale Λ s≤ M pl Λ_s≤M_\rmpl serves as a UV cutoff in the gravitational sector
of an EFT and can depend on the moduli of the theory as the spectrum of the theory varies. It …

A bstract In a quantum theory of gravity, the species scale Λ s can be defined as the scale at
which corrections to the Einstein action become important or alternatively as codifying the …

We provide a moduli-dependent definition of species scale in quantum gravity based on
black hole arguments. Concretely, it is derived from a lower bound on the entropy of …

The species scale provides an upper bound for the ultraviolet cutoff of effective theories of
gravity coupled to a number of light particle species. Modular invariant (super‐) potentials …

A bstract Asymptotically massless towers of species are ubiquitous in the string landscape
when infinite-distance limits are approached. Due to the remarkable properties of string …

The counting of the number of light modes in a gravitational theory is captured by the notion
of thespecies scale', which serves as an effective UV cutoff below the Planck scale. We …

A bstract We revisit the Emergence Proposal in the vector multiplet moduli space of type IIA
N= 2 supersymmetric string vacua in four dimensions, for which the string tree-level …

The role of the species scale as the Quantum Gravity (QG) cut-off has been recently
emphasised in the context of the Swampland Program. Along these lines, we continue the …

A bstract We investigate the asymptotic Tower Weak Gravity Conjecture in weak coupling
limits of open string theories with minimal supersymmetry in four dimensions, focusing for …

A bstract We determine all flux vacua with flux numbers N flux≤ 10 for a type IIB orientifold-
compactification on the mirror-octic three-fold. To achieve this, we develop and apply …