4 citations · 4 across the 1 of their papers we have counts for
7 papers
Shifting Spin on the Celestial Sphere
Sabrina Pasterski, Andrea Puhm
We explore conformal primary wavefunctions for all half integer spins up to the graviton. Half steps are related by supersymmetry, integer steps by the classical double copy. The m…
Loops on the Celestial Sphere
Hernan A. Gonzalez, Andrea Puhm, Francisco Rojas
We study the effect of loop corrections to conformal correlators on the celestial sphere at null infinity. We first analyze finite one-loop celestial amplitudes in pure Yang-Mills…
Asymptotic Symmetries and Celestial CFT
Laura Donnay, Sabrina Pasterski, Andrea Puhm
We provide a unified treatment of conformally soft Goldstone modes which arise when spin-one or spin-two conformal primary wavefunctions become pure gauge for certain integer value…
Conformally Soft Theorem In Gravity
Andrea Puhm
A central feature of scattering amplitudes in gravity or gauge theory is the existence of a variety of energetically soft theorems which put constraints on the amplitudes. Celestia…
Conformally Soft Photons and Gravitons
Laura Donnay, Andrea Puhm, Andrew Strominger
The four-dimensional -matrix is reconsidered as a correlator on the celestial sphere at null infinity. Asymptotic particle states can be characterized by the point at which they…
Black hole memory effect
Laura Donnay, Gaston Giribet, Hernan A. Gonzalez +1
We compute the memory effect produced at the black hole horizon by a transient gravitational shockwave. As shown by Hawking, Perry, and Strominger (HPS) such a gravitational wave p…