A bstract We use Swampland principles to theoretically disfavor regions of the parameter space dark matter and other darkly charged particles that may exist. The Festina Lente bound, analogue Weak-Gravity conjecture in de Sitter, places constraints on mass charge particles, which here we show cover are currently allowed by observations. As a consequence, broad set new ultra-light Swampland, ind...

We reconsider the problem of bounding higher derivative couplings in consistent weakly coupled gravitational theories, starting from general assumptions about analyticity and Regge growth S-matrix. Higher are expected to be order one units UV cutoff. Our approach justifies this expectation allows prove precise bounds on coefficients. main tool dispersive sum rules for overcome difficulties pres...

A bstract The purpose of this paper is two-fold. First we review in detail the geometric aspects swampland program for supersymmetric 4d effective theories using a new and unifying language dub “domestic geometry”, generalization special Kähler geometry which does not require underlying manifold to be or have complex structure. All SUGRAs are described by domestic geometry. As geometries, geome...

The swampland conjectures from String theory have had very interesting implications for cosmology and particularly Inflation. It has been shown that the single field inflationary models in a GR based are unavoidable tensions with these conjectures, while can still be consistent certain non-trivial regimes. So it becomes to see whether there is way overcome issues of inflation an essentially cos...

A bstract We consider spacetime-dependent solutions to string theory models with tadpoles for dynamical fields, arising from non-trivial scalar potentials. The have necessarily finite extent in spacetime, and are capped off by boundaries at a distance, realization of the Cobordism Conjecture. show that as configuration approaches these cobordism walls nothing, fields run infinite distance modul...

A bstract We point out that pure supergravity theories in AdS with enough supersymmetry lead, upon taking the large radius limit, to flat space quantum gravities a nonperturbatively exact global symmetry, and are therefore Swampland. The argument applies any gauged R-symmetry group, including truncations of most well known examples, such as 5 without S or 4 7 . This demonstrates extreme scale s...