202 citations · 1.9k across the 47 of their papers we have counts for
48 papers
Chern-Weil theorem, Lovelock Lagrangians in critical dimensions and boundary terms in gravity actions
Nathalie Deruelle, Nelson Merino, Rodrigo Olea
In this paper we show how to translate into tensorial language the Chern-Weil theorem for the Lorentz symmetry, which equates the difference of the Euler densities of two manifolds…
Thermodynamics sheds light on black hole dynamics
Marcela Cárdenas, Félix-Louis Julié, Nathalie Deruelle
We propose to unify two a priori distinct aspects of black hole physics : their thermodynamics, and their effective dynamics when they are "skeletonized" as point particles (a usef…
Einstein-Gauss-Bonnet theory of gravity: The Gauss-Bonnet-Katz boundary term
Nathalie Deruelle, Nelson Merino, Rodrigo Olea
We propose a boundary term to the Einstein-Gauss-Bonnet action for gravity, which is constructed as the dimensional continuation of the Chern-Weil theorem, and such that the extrem…
Two-body problem in Scalar-Tensor theories as a deformation of General Relativity : an Effective-One-Body approach
Félix-Louis Julié, Nathalie Deruelle
In this paper we address the two-body problem in massless Scalar-Tensor (ST) theories within an Effective-One-Body (EOB) framework. We focus on the first building block of the EOB…
Einstein-Katz action, variational principle, Noether charges and the thermodynamics of AdS-black holes
Andrés Anabalón, Nathalie Deruelle, Félix-Louis Julié
In this paper we describe 4-dimensional gravity coupled to scalar and Maxwell fields by the Einstein-Katz action, that is, the covariant version of the "Gamma-Gamma Gamma-Gamma…
Disformal Transformations, Veiled General Relativity and Mimetic Gravity
Nathalie Deruelle, Josephine Rua
In this Note we show that Einstein's equations for gravity are generically invariant under 'disformations'. We also show that the particular subclass when this is not true yields t…