We discuss some of the issues arising when considering asymptotically de Sitter space–
times and attempts to address them. Our development begins at the classical level where …

It has recently been proposed that Zamoldchikov's $ T\bar {T} $ deformation of two-
dimensional CFTs describes the holographic theory dual to AdS $ _3 $ at finite radius. In this …

A bstract The membrane paradigm displays underlying connections between a timelike
stretched horizon and a null boundary (such as a black hole horizon) and bridges the …

We discuss recent developments in the hydrodynamic description of strongly coupled
conformal field theories using the AdS/CFT correspondence. In particular, we review aspects …

A bstract We show by explicit construction that for every solution of the incompressible
Navier-Stokes equation in p+ 1 dimensions, there is a uniquely associated “dual” solution of …

The problem of gravitational fluctuations confined inside a finite cutoff at radius r= rc outside
the horizon in a general class of black hole geometries is considered. Consistent boundary …

A bstract We revisit the cutoff surface formulation of fluid-gravity duality in the context of the
classical double copy. The spacetimes in this fluid-gravity duality are algebraically special …

A bstract We study 3-dimensional gravity on a spacetime bounded by a generic 2-
dimensional causal surface. We review the solution phase space specified by 4 generic …

We present an algorithm for systematically reconstructing a solution of the (d+ 2)-
dimensional vacuum Einstein equations from a (d+ 1)-dimensional fluid, extending the non …

A bstract We consider general black hole solutions of Einstein-Maxwell-scalar theory that
are holographically dual to conformal field theories at finite charge density with …