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 recent result of the Dark Energy Spectroscopic Instrument (DESI) in combination with
other cosmological data shows evidence of the evolving dark energy parametrized by the w …

We revisit the possibility that the stochastic common-spectrum process recently detected by
the NANOGrav pulsar timing array experiment could be due to primordial gravitational …

The diffuse backgrounds of relic gravitons with frequencies ranging between the aHz band
and the GHz region encode the ultimate information on the primeval evolution of the plasma …

Our current best guess for a unified theory of gravitation and quantum field theory (string
theory) generically predicts a set of requirements for a consistently quantized theory, the …

Quantum consistency suggests that any de Sitter patch that lasts a number of Hubble times
that exceeds its Gibbons‐Hawking entropy divided by the number of light particle species …

Recently, arguments for a refined de Sitter conjecture were put forward in [1]. Using the large
distance conjecture of [2], the authors provide evidence for this dS conjecture in asymptotic …

Motivated by its potential use as a starting point for solving various cosmological constant
problems, we study F‐theory compactified on the warped product where Y8 is a manifold …

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 …

The recently proposed swampland criteria aim to evade any (meta-) stable de Sitter
constructions within string landscapes, making it difficult to accommodate accelerating …