246 citations · 638 across the 18 of their papers we have counts for
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hep-th2021★ 4 cited
Generalized dilaton gravity in 2d
Daniel Grumiller, Romain Ruzziconi, Céline Zwikel
Generalized dilaton gravity in 2d is the most general consistent deformation of the Jackiw-Teitelboim model that maintains local Lorentz invariance. The action is generically not p…
hep-th2021
BMS Flux Algebra in Celestial Holography
Laura Donnay, Romain Ruzziconi
Starting from gravity in asymptotically flat spacetime, the BMS momentum fluxes are constructed. These are non-local expressions of the solution space living on the celestial Riema…
gr-qc2021
Coadjoint representation of the BMS group on celestial Riemann surfaces
Glenn Barnich, Romain Ruzziconi
The coadjoint representation of the BMS group in four dimensions is constructed in a formulation that covers both the sphere and the punctured plane. The structure constants are wo…