11 papers
From black holes to baby universes in CGHS gravity
Victor Godet, Charles Marteau
We study gravity, a variant of the matterless Callan-Giddings-Harvey-Strominger model. We show that it describes a universal sector of the near horizon pert…
Fefferman-Graham and Bondi Gauges in the Fluid/Gravity Correspondence
Luca Ciambelli, Charles Marteau, P. Marios Petropoulos +1
In three-dimensional gravity, we discuss the relation between the Fefferman--Graham gauge, the Bondi gauge and the Eddington--Finkelstein type of gauge, often referred to as the de…
Gauges in Three-Dimensional Gravity and Holographic Fluids
Luca Ciambelli, Charles Marteau, P. Marios Petropoulos +1
Solutions to Einstein's vacuum equations in three dimensions are locally maximally symmetric. They are distinguished by their global properties and their investigation often requir…
New boundary conditions for AdS
Victor Godet, Charles Marteau
We describe new boundary conditions for AdS in Jackiw-Teitelboim gravity. The asymptotic symmetry group is enhanced to whose breaking to $\…
Gravitation in flat spacetime from entanglement
Victor Godet, Charles Marteau
We explore holographic entanglement entropy for Minkowski spacetime in three and four dimensions. Under some general assumptions on the putative holographic dual, the entanglement…
Carroll Structures, Null Geometry and Conformal Isometries
Luca Ciambelli, Robert G. Leigh, Charles Marteau +1
We study the concept of Carrollian spacetime starting from its underlying fiber-bundle structure. The latter admits an Ehresmann connection, which enables a natural separation of t…