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 …

Abstract The LIGO and Virgo Interferometers have so far provided 11 gravitational-wave
(GW) observations of black-hole binaries. Similar detections are bound to become very …

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 consider the entanglement entropy in 2d conformal field theory in a class of
excited states produced by the insertion of a heavy local operator. These include both high …

A bstract We study the analytic structure of the heavy-heavy-light-light holographic
correlators in the supergravity approximation of the AdS 3× S 3/CFT 2 duality. As an explicit …

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 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 …

The advent of gravitational waves and black hole imaging has opened a new window into
probing the horizon scale of black holes. An important question is whether string theory …