Celestial Lw1+∞ charges from a twistor action
A bstract The celestial Lw 1+∞ symmetries in asymptotically flat spacetimes have a natural
geometric interpretation on twistor space in terms of Poisson diffeomorphisms. Using this …
geometric interpretation on twistor space in terms of Poisson diffeomorphisms. Using this …
Quantizing Carrollian field theories
A bstract Carrollian field theories have recently emerged as a candidate dual to flat space
quantum gravity. We carefully quantize simple two-derivative Carrollian theories, revealing a …
quantum gravity. We carefully quantize simple two-derivative Carrollian theories, revealing a …
A systematic approach to celestial holography: a case study in Einstein gravity
W Bu, S Seet - arxiv preprint arxiv:2404.04637, 2024 - arxiv.org
We propose a systematic approach to celestial holography in massless theories beginning
by studying the implications of properly incorporating field configurations built using the …
by studying the implications of properly incorporating field configurations built using the …
Asymptotic Higher Spin Symmetries I: Covariant Wedge Algebra in Gravity
N Cresto, L Freidel - arxiv preprint arxiv:2409.12178, 2024 - arxiv.org
In this paper, we study gravitational symmetry algebras that live on 2-dimensional cuts $ S $
of asymptotic infinity. We define a notion of wedge algebra $\mathcal {W}(S) $ which …
of asymptotic infinity. We define a notion of wedge algebra $\mathcal {W}(S) $ which …
Asymptotic Higher Spin Symmetries II: Noether Realization in Gravity
N Cresto, L Freidel - arxiv preprint arxiv:2410.15219, 2024 - arxiv.org
In this paper we construct a non-perturbative action of the higher spin symmetry algebra on
the gravitational phase space. We introduce a symmetry algebroid $\mathcal {T} $ which …
the gravitational phase space. We introduce a symmetry algebroid $\mathcal {T} $ which …
On AdS deformations of celestial symmetries
R Bittleston, G Bogna, S Heuveline, A Kmec… - arxiv preprint arxiv …, 2024 - arxiv.org
Celestial holography has led to the discovery of new symmetry algebras arising from the
study of collinear limits of perturbative gravity amplitudes in flat space. We explain from the …
study of collinear limits of perturbative gravity amplitudes in flat space. We explain from the …
[PDF][PDF] Quantizing Carrollian field theories
Carrollian field theories have recently emerged as a candidate dual to flat space quantum
gravity. We carefully quantize simple two-derivative Carrollian theories, revealing a strong …
gravity. We carefully quantize simple two-derivative Carrollian theories, revealing a strong …