Celestial Holography

Abstract

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, solicited for the 2022 Snowmass process, we review the motivation from asymptotic symmetries, fundamentals of the proposed holographic dictionary, potential applications to experiment and theory, and some important open questions.

arXiv commentcontribution to Snowmass 2022

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• Symmetries of Celestial Amplitudes
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• Scattering Amplitudes
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