156 citations · 634 across the 18 of their papers we have counts for
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hep-th2025
(Anti)-de Sitter with leaky boundaries and corners
Robert McNees, Céline Zwikel
We construct charges for four-dimensional spacetimes with a non-vanishing cosmological constant, including charges that are not conserved because of a leaky boundary and charges as…
hep-th2025
Celestial Symmetries and Subleading Phase Space of Null Hypersurfaces
Romain Ruzziconi, Céline Zwikel
Pursuing our analysis of [1], we study the gravitational solution space around a null hypersurface in the bulk of spacetime, such as a black hole or a cosmological horizon. We disc…
hep-th2025★ 1 cited
Celestial Symmetries of Black Hole Horizons
Romain Ruzziconi, Céline Zwikel
We establish a correspondence between the gravitational phase space at null infinity and the subleading phase space near a finite-distance null hypersurface, such as a black hole h…