Post-Newtonian dynamics and black hole thermodynamics in Einstein-scalar-Gauss-Bonnet gravity

FL Julié, E Berti - Physical Review D, 2019 - APS
We study the post-Newtonian dynamics of black hole binaries in Einstein-scalar-Gauss-
Bonnet gravity theories. To this aim we build static, spherically symmetric black hole …

formalism in Einstein-scalar-Gauss-Bonnet gravity

FL Julié, E Berti - Physical Review D, 2020 - APS
We present the d+ 1 formulation of Einstein-scalar-Gauss-Bonnet (ESGB) theories in
dimension D= d+ 1 and for arbitrary (spacelike or timelike) spacetime foliations. We first …

Null boundary terms for Lanczos–Lovelock gravity

S Chakraborty, K Parattu - General Relativity and Gravitation, 2019 - Springer
We derive boundary terms appropriate for the general Lanczos–Lovelock action on a null
boundary, when Dirichlet boundary conditions are imposed. We believe that these boundary …

Einstein-Gauss-Bonnet theory of gravity: the Gauss-Bonnet-Katz boundary term

N Deruelle, N Merino, R Olea - Physical Review D, 2018 - APS
We propose a boundary term to the Einstein-Gauss-Bonnet action for gravity, which uses the
Chern-Weil theorem plus a dimensional continuation process, such that the extremization of …

[HTML][HTML] On the topological character of metric-affine Lovelock Lagrangians in critical dimensions

B Janssen, A Jiménez-Cano - Physics Letters B, 2019 - Elsevier
In this paper we prove that the k-th order metric-affine Lovelock Lagrangian is not a total
derivative in the critical dimension n= 2 k in the presence of non-trivial non-metricity. We use …

Boundary conditions for constraint systems in variational principle

K Izumi, K Shimada, K Tomonari… - … of Theoretical and …, 2023 - academic.oup.com
We show the well-posed variational principle in constraint systems. In a naive procedure of
the variational principle with constraints, the proper number of boundary conditions does not …

Regular black hole and cosmological spacetimes in Non-Polynomial Gravity theories

A Colléaux - 2019 - eprints-phd.biblio.unitn.it
General Relativity is known to suffer from singularities at short distances, which indicates the
breakdown of its predictability, for instance at the center of black holes, and in the very early …

Dimensional aspects of Lovelock-Lanczos gravity

A Colléaux - arXiv preprint arXiv:2010.14174, 2020 - arxiv.org
There has recently been an increasing interest in regularizations of Lovelock-Lanczos
gravity (LLG) in four dimensions, in which dimensional poles and possibly counter-terms are …

Sur le problème à deux corps et le rayonnement gravitationnel en théories scalaire-tenseur et Einstein-Maxwell-dilaton

FL Julié - 2018 - theses.hal.science
Avec la naissance de l'" astronomie gravitationnelle", vient l'opportunité inédite de tester la
relativité générale et ses alternatives dans un régime de champ fort jamais observé …