Lectures on celestial amplitudes

S Pasterski - The European Physical Journal C, 2021 - Springer
Lecture notes prepared for the 2021 SAGEX PhD School in Amplitudes hosted by the
University of Copenhagen August 10th through 13th. Topics covered include: the …

Lectures on celestial holography

AM Raclariu - arxiv preprint arxiv:2107.02075, 2021 - arxiv.org
These notes consist of 3 lectures on celestial holography given at the Pre-Strings school
2021. We start by reviewing how semiclassically, the subleading soft graviton theorem …

Holographic symmetry algebras for gauge theory and gravity

A Guevara, E Himwich, M Pate… - Journal of High Energy …, 2021 - Springer
A bstract All 4D gauge and gravitational theories in asymptotically flat spacetimes contain an
infinite number of non-trivial symmetries. They can be succinctly characterized by …

Carrollian amplitudes and celestial symmetries

L Mason, R Ruzziconi, AY Srikant - Journal of High Energy Physics, 2024 - Springer
A bstract Carrollian holography aims to express gravity in four-dimensional asymptotically
flat spacetime in terms of a dual three-dimensional Carrollian CFT living at null infinity …

[KÖNYV][B] Lectures on the infrared structure of gravity and gauge theory

A Strominger - 2018 - books.google.com
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 …

Soft hair on black holes

SW Hawking, MJ Perry, A Strominger - Physical Review Letters, 2016 - APS
It has recently been shown that Bondi–van der Burg–Metzner–Sachs supertranslation
symmetries imply an infinite number of conservation laws for all gravitational theories in …

Celestial amplitudes from UV to IR

N Arkani-Hamed, M Pate, AM Raclariu… - Journal of High Energy …, 2021 - Springer
A bstract Celestial amplitudes represent 4D scattering of particles in boost, rather than the
usual energy-momentum, eigenstates and hence are sensitive to both UV and IR physics …

Celestial holography

S Pasterski, M Pate, AM Raclariu - arxiv preprint arxiv:2111.11392, 2021 - arxiv.org
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 …

4D scattering amplitudes and asymptotic symmetries from 2D CFT

C Cheung, A de la Fuente, R Sundrum - Journal of High Energy Physics, 2017 - Springer
A bstract We reformulate the scattering amplitudes of 4D flat space gauge theory and gravity
in the language of a 2D CFT on the celestial sphere. The resulting CFT structure exhibits an …

From asymptotic symmetries to the corner proposal

L Ciambelli - arxiv preprint arxiv:2212.13644, 2022 - arxiv.org
These notes are a transcript of lectures given by the author in the XVIII Modave summer
school in mathematical physics. The introduction is devoted to a detailed review of the …