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 …

Celestial holography: An asymptotic symmetry perspective

L Donnay - Physics Reports, 2024 - Elsevier
We review the role that infinite-dimensional symmetries arising at the boundary of
asymptotically flat spacetimes play in the context of the celestial holography program. Once …

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 …

[图书][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 …

Burns space and holography

K Costello, NM Paquette, A Sharma - Journal of High Energy Physics, 2023 - Springer
A bstract We elaborate on various aspects of our top-down celestial holographic duality
wherein the semiclassical bulk spacetime is a 4d asymptotically flat, self-dual Kähler …

Bridging Carrollian and celestial holography

L Donnay, A Fiorucci, Y Herfray, R Ruzziconi - Physical Review D, 2023 - APS
Gravity in 4 d asymptotically flat spacetime constitutes the archetypal example of a
gravitational system with leaky boundary conditions. Pursuing our previous analysis of …

Celestial holography meets twisted holography: 4d amplitudes from chiral correlators

K Costello, NM Paquette - Journal of High Energy Physics, 2022 - Springer
A bstract We propose a new program for computing a certain integrand of scattering
amplitudes of four-dimensional gauge theories which we call the form factor integrand …

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 …

Flat space amplitudes and conformal symmetry of the celestial sphere

S Pasterski, SH Shao, A Strominger - Physical Review D, 2017 - APS
The four-dimensional (4D) Lorentz group SL (2, C) acts as the two-dimensional (2D) global
conformal group on the celestial sphere at infinity where asymptotic 4D scattering states are …