18 citations · 31 across the 5 of their papers we have counts for
5 papers
Emergent Cosmological Expansion in Scalar-Tensor Theories of Gravity
Chad Briddon, Timothy Clifton, Pierre Fleury
We consider the emergence of large-scale cosmological expansion in scalar-tensor theories of gravity. This is achieved by modelling sub-horizon regions of space-time as weak-field…
Using machine learning to optimise chameleon fifth force experiments
Chad Briddon, Clare Burrage, Adam Moss +1
The chameleon is a theorised scalar field that couples to matter and possess a screening mechanism, which weakens observational constraints from experiments performed in regions of…
Chameleon Screening in Cosmic Voids
Andrius Tamosiunas, Chad Briddon, Clare Burrage +3
A key goal in cosmology in the upcoming decade will be to form a better understanding of the accelerated expansion of the Universe. Upcoming surveys, such as the Vera C. Rubin Obse…
SELCIE: A tool for investigating the chameleon field of arbitrary sources
Chad Briddon, Clare Burrage, Adam Moss +1
The chameleon model is a modified gravity theory that introduces an additional scalar field that couples to matter through a conformal coupling. This `chameleon field' possesses a…
Chameleon Screening Depends on the Shape and Structure of NFW Halos
Andrius Tamosiunas, Chad Briddon, Clare Burrage +2
Chameleon gravity is an example of a model that gives rise to interesting phenomenology on cosmological scales while simultaneously possessing a screening mechanism, allowing it to…