44 citations · 171 across the 8 of their papers we have counts for
8 papers
Fast and accurate predictions of the nonlinear matter power spectrum for general models of Dark Energy and Modified Gravity
B. Bose, M. Tsedrik, J. Kennedy +3
We embed linear and nonlinear parametrisations of beyond standard cosmological physics in the halo model reaction framework, providing a model-independent prescription for the nonl…
Seeking New Physics in Cosmology with Bayesian Neural Networks: Dark Energy and Modified Gravity
Michele Mancarella, Joe Kennedy, Benjamin Bose +1
We study the potential of Bayesian Neural Networks (BNNs) to detect new physics in the dark matter power spectrum, concentrating here on evolving dark energy and modifications to G…
Parameterised post-Newtonian formalism for the effective field theory of dark energy via screened reconstructed Horndeski theories
Cyril Renevey, Joe Kennedy, Lucas Lombriser
We bring together two popular formalisms which generically parameterise deviations from General Relativity on astrophysical and cosmological scales, namely the parameterised post-N…
Positivity bounds on reconstructed Horndeski models
Joe Kennedy, Lucas Lombriser
Positivity bounds provide conditions that a consistent UV-completion exists for a quantum field theory. We examine their application to Horndeski gravity models reconstructed from…
Screening and degenerate kinetic self-acceleration from the nonlinear freedom of reconstructed Horndeski theories
Joe Kennedy, Lucas Lombriser, Andy Taylor
We have previously presented a reconstruction of Horndeski scalar-tensor theories from linear cosmological observables. It includes free nonlinear terms which can be added onto the…
Inherently stable effective field theory for dark energy and modified gravity
Lucas Lombriser, Charles Dalang, Joe Kennedy +1
The growing wealth of cosmological observations places increasingly more stringent constraints on dark energy and alternative gravity models. Particularly successful in efficiently…
Reconstructing Horndeski theories from phenomenological modified gravity and dark energy models on cosmological scales
Joe Kennedy, Lucas Lombriser, Andy Taylor
Recently we have derived a set of mapping relations that enables the reconstruction of the family of Horndeski scalar-tensor theories which reproduce the background dynamics and li…
Reconstructing Horndeski models from the effective field theory of dark energy
Joe Kennedy, Lucas Lombriser, Andy Taylor
Studying the effects of dark energy and modified gravity on cosmological scales has led to a great number of physical models being developed. The effective field theory (EFT) of co…