The Weak Gravity Conjecture holds that in a theory of quantum gravity, any gauge force
must mediate interactions stronger than gravity for some particles. This statement has …

We perform an extensive analysis of the statistics of axion masses and interactions in
compactifications of type IIB string theory, and we show that black hole superradiance …

The weak gravity conjecture holds that in a theory of quantum gravity any gauge force must
mediate interactions stronger than gravity for some particles. This statement has surprisingly …

A bstract We analyze the charge-to-mass structure of BPS states in general infinite-distance
limits of\(\mathcal {N}\)= 2 compactifications of Type IIB string theory on Calabi-Yau three …

A bstract We show that the strong CP problem is solved in a large class of compactifications
of string theory. The Peccei-Quinn mechanism solves the strong CP problem if the CP …

A bstract String theory has been claimed to give rise to natural fuzzy dark matter candidates
in the form of ultralight axions. In this paper we revisit this claim by a detailed study of how …

We study axion-photon couplings in compactifications of type IIB string theory. We find that
these couplings are systematically suppressed compared to the inverse axion periodicity, as …

A bstract The study of conformal boundary conditions for two-dimensional conformal field
theories (CFTs) has a long history, ranging from the description of impurities in one …

A bstract We present a method to construct the extended Kähler cone of any Calabi-Yau
threefold by using Gopakumar-Vafa invariants to identify all geometric phases that are …

We give an overview of moduli stabilization in compactifications of string theory. We
summarize current methods for construction and analysis of vacua with stabilized moduli …