P
Philippe Brax
Researcher at Université Paris-Saclay
Publications - 74
Citations - 2737
Philippe Brax is an academic researcher from Université Paris-Saclay. The author has contributed to research in topics: Scalar field & Dark energy. The author has an hindex of 23, co-authored 74 publications receiving 2474 citations. Previous affiliations of Philippe Brax include Centre national de la recherche scientifique & Institut d'Astrophysique de Paris.
Papers
More filters
Journal ArticleDOI
The effective field theory of K-mouflage
Philippe Brax,Patrick Valageas +1 more
TL;DR: In this article, the authors describe K-mouflage models of modified gravity using the effective field theory of dark energy, and show how the Lagrangian density $K$ defining the k-moorage models appears in the effect field theory framework, at both the exact fully nonlinear level and at the quadratic order of the effective action.
Journal ArticleDOI
Systematic simulations of modified gravity: symmetron and dilaton models
TL;DR: In this paper, the effects of modified gravity on the matter power spectrum and mass function have been investigated using the N-body simulation code ECOSMOG, which is a variant of RAMSES working in modified gravity scenarios, to perform a set of 110 simulations for different models and parameter values.
Journal ArticleDOI
Dark Energy and Doubly Coupled Bigravity
TL;DR: In this article, the authors analyse the late time cosmology and the gravitational properties of doubly coupled bigravity in the constrained vielbein formalism (equivalent to the metric formalism) when the mass of the massive graviton is of the order of the present Hubble rate.
Journal ArticleDOI
Interpretation of geodesy experiments in non-Newtonian theories of gravity
TL;DR: In this paper, the authors revisited deviations from Newtonian gravity described by a Yukawa interaction that can arise from the existence of a finite range fifth force and showed that the standard multipolar expansion of the Earth gravitational potential can be generalised.
Journal ArticleDOI
Cosmological supersymmetric model of dark energy
TL;DR: In this paper, the cosmological evolution of the supersymmetron field, focusing on the linear perturbations and the spherical collapse, was investigated and it was shown that observable modifications in structure formation can indeed exist.