In this review article, we describe some of the recent progress towards the construction and
analysis of three-charge configurations in string theory and supergravity. We begin by …

The fuzzball proposal states that associated with a black hole of entropy S, there are
expShorizon-free non-singular solutions that asymptotically look like the black hole but …

A bstract We examine the mechanism of moduli stabilization by fluxes in the limit of a large
number of moduli. We conjecture that one cannot stabilize all complex-structure moduli in F …

The black-hole information paradox provides one of the sharpest foci for the conflict between
quantum mechanics and general relativity and has become the proving-ground of would-be …

A bstract We use the replica method to compute the entanglement entropy of a universe
without gravity entangled in a thermofield-double-like state with a disjoint gravitating …

We construct the first family of horizonless supergravity solutions that have the same mass,
charges, and angular momenta as general supersymmetric rotating D 1-D 5-P black holes in …

A bstract We investigate degeneracies of BPS states of D-branes on compact Calabi-Yau
manifolds. We develop a factorization formula for BPS indices using attractor flow trees …

A bstract We construct the first example of a superstratum: a class of smooth horizonless
supergravity solutions that are parameterized by arbitrary continuous functions of (at least) …

A bstract We construct an infinite family of smooth asymptotically-flat supergravity solutions
that have the same charges and angular momenta as general supersymmetric D1-D5-P …

A bstract We construct a family of non-supersymmetric extremal black holes and their
horizonless microstate geometries in four dimensions. The black holes can have finite …