# Null boundary phase space: slicings, news & memory

@article{Adami2021NullBP,
title={Null boundary phase space: slicings, news \& memory},
author={H. Adami and Daniel Grumiller and M. M. Sheikh-Jabbari and V. Taghiloo and Hossein Yavartanoo and C'eline Zwikel},
journal={Journal of High Energy Physics},
year={2021}
}
• H. Adami, +3 authors C. Zwikel
• Published 8 October 2021
• Physics
• Journal of High Energy Physics
Abstract We construct the boundary phase space in D-dimensional Einstein gravity with a generic given co-dimension one null surface $$\mathcal{N}$$ N as the boundary. The associated boundary symmetry algebra is a semi-direct sum of diffeomorphisms of $$\mathcal{N}$$ N and Weyl rescalings. It is generated by D towers of surface charges that are generic functions over $$\mathcal{N}$$ N . These surface charges can be rendered integrable for appropriate slicings of the phase space…
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