Null boundary phase space: slicings, news & memory
@article{Adami2021NullBP, title={Null boundary phase space: slicings, news \& memory}, author={Hamed Adami and Daniel Grumiller and M. M. Sheikh-Jabbari and Vahid Taghiloo and Hossein Yavartanoo and C'eline Zwikel}, journal={Journal of High Energy Physics}, year={2021} }
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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