A short, graduate-level synthesis of recent developments in theoretical physics, from a
pioneer in the field Lectures on the Infrared Structure of Gravity and Gauge Theory presents …

A bstract It is shown that black hole spacetimes in classical Einstein gravity are
characterized by, in addition to their ADM mass M, momentum\(\overrightarrow {P}\), angular …

Celestial holography proposes a duality between the gravitational $\mathcal {S} $-matrix
and correlators in a conformal field theory living on the celestial sphere. In this white paper …

We evaluate the vacuum entanglement entropy across a cut of future null infinity for free
Maxwell theory in four-dimensional Minkowski spacetime. The Weyl invariance of 4D …

In this paper, we study codimension two holography in flat spacetimes, based on the idea of
the wedge holography. We propose that a region in ad+ 1 dimensional flat spacetime …

Gravitational-wave memory, a strong-field effect of general relativity, manifests itself as a
permanent displacement in spacetime. We develop a Bayesian framework to detect …

A bstract We study the relationship between shockwave geometries and the gravitational
memory effect in four-dimensional asymptotically flat spacetime. In particular, we show the't …

A bstract In this work, we demonstrate that quantizing gravity on a null hypersurface leads to
the emergence of a CFT associated with each null ray. This result stems from the ultralocal …

A bstract We compute fluctuations in the modular energy of the vacuum associated with a
Rindler-wedge in AdS spacetime in the context of AdS/CFT. We discuss the possible effect …

We argue that four-dimensional black hole evaporation inevitably produces an infinite
number of soft particles in addition to the thermally distributed 'hard'Hawking quanta, and …