We review recent progress on the information paradox. We explain why exponentially small
correlations in the radiation emitted by a black hole are sufficient to resolve the original …

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 …

A bstract In the 1980's, work by Coleman and by Giddings and Strominger linked the physics
of spacetime wormholes to 'baby universes' and an ensemble of theories. We revisit such …

Gravitational waves from binary coalescences provide one of the cleanest signatures of the
nature of compact objects. It has been recently argued that the postmerger ringdown …

Structure at the horizon scale of black holes would give rise to echoes of the gravitational
wave signal associated with the postmerger ringdown phase in binary coalescences. We …

A bstract We describe the experience of an observer falling into a black hole using the
AdS/CFT correspondence. In order to do this, we reconstruct the local bulk operators …

We give a brief overview of the black hole information problem emphasizing fundamental
issues and recent proposals for its resolution. The focus is on broad perspective and …

If a black hole starts in a pure quantum state and evaporates completely by a unitary
process, the von Neumann entropy of the Hawking radiation initially increases and then …

The tidal Love numbers (TLNs) encode the deformability of a self-gravitating object
immersed in a tidal environment and depend significantly both on the object's internal …

We explore the spacetime structure near nonextremal horizons in any spacetime dimension
greater than two and discover a wealth of novel results:(i) Different boundary conditions are …