Abstract The transcendental expectation of string theory is that the nature fundamental forces, particle spectra and masses, together with coupling constants, uniquely determined by mathematical logical consistency, non-empirically, pure reason. However pluralism triumphed explosive emergence multiverse. String theorists have extended a long-sought dream (their unique final theory) to landscape...

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 force and provide a number of evidences for this statement. Our conjecture implies that any non-supersymmetric anti-de Sitter vacuum supported by fluxes must be unstable, as is the case for all known attempts at s...

Recent developments in string theory suggest that string theory landscape of vacua is vast. It is natural to ask if this landscape is as vast as allowed by consistent-looking effective field theories. We use universality ideas from string theory to suggest that this is not the case, and that the landscape is surrounded by an even more vast swampland of consistent-looking semiclassical effective...

In this short review, we outline three sets of developments in understanding heterotic string compactifications. First, we outline recent progress in heterotic analogues of quantum cohomology computations. Second, we discuss a potential swampland issue in heterotic strings, and new heterotic string constructions that can be used to fill in the naively missing theories. Third, we discuss recent ...

We view and provide further evidence for a number of Swampland criteria, including the Weak Gravity Conjecture, Distance Conjecture bounds on finiteness quantum gravity vacua from prism black hole entropy. Furthermore we propose that at least all these statements may be more fundamentally consequence amplitudes.

A bstract We extend studies of holographic aspects moduli stabilisation scenarios to both fibred versions LVS and the type IIA DGKT flux vacua. study properties low-energy Lagrangian that describes AdS vacuum also small perturbations about it. For vacua in large-volume regime, CFT data (operator dimensions higher-point interactions) take a universal form independent many arbitrary choices, as w...