A bstract Celestial diamonds encode the structure of global conformal multiplets in 2D
celestial CFT and offer a natural language for describing the conformally soft sector. The …

JT gravity has a first-order formulation as a two-dimensional BF theory, which can be viewed
as the dimensional reduction of the Chern-Simons description of $3 d $ gravity. We consider …

A bstract Infrared divergences in perturbative gravitational scattering amplitudes have been
recently argued to be governed by the two-point function of the supertranslation Goldstone …

A bstract The generating functional of stress tensor correlation functions in two-dimensional
conformal field theory is the nonlocal Polyakov action, or equivalently, the Liouville or …

A bstract In two-dimensional CFTs with a large central charge, the level-two BPZ equation
governs the heavy-light scalar four-point correlator when the light probe scalar has …

I describe the Schwarzian behavior of the gravitational field at null infinity under
superrotations, to be understood as an\textit {unobservable} gauge artifact. To this end I …

A bstract When two particles collide in an asymptotically AdS spacetime with high enough
energy and small enough impact parameter, they can form a black hole. Motivated by dual …

A bstract An effective theory designed to compute Virasoro identity blocks at large central
charge, expressed in terms of the propagation of a reparametrization/shadow mode …

We identify the universal mechanism behind the thermalization of (1+ 1) d QFTs at high and
low temperatures. Viewing these theories as CFTs perturbed by relevant or irrelevant …

A bstract We continue the investigation of coupled Sachdev-Ye-Kitaev (SYK) models without
Schwarzian action dominance. Like the original SYK, at large N and low energies these …