3 citations · 3 across the 4 of their papers we have counts for
5 papers
The Symbiosis of Vainshtein and Chameleon Screening
Sergi Sirera, Tessa Baker, Clare Burrage +2
We present the first study of coexisting Vainshtein and Chameleon screening in cosmic structures. Screening hides fifth forces locally, keeping modified gravity viable. Realistic d…
Rolling Galileons: Evolving Braiding Strength for Viable Dark Energy
James Hallam, Krishna Naidoo, Sergi Sirera +1
Motivated by growing observational indications that dark energy may be dynamical, we introduce Rolling Galileon gravity: a minimal shift-symmetry-breaking extension of the cubic Ga…
A Master Equation for Screening in Luminal Horndeski Gravity
Sergi Sirera, Tessa Baker, James Hallam +1
Determining the active screening mechanism from a general scalar-tensor Lagrangian remains a challenging problem. As a diagnostic tool, we present a systematic study of nonlinear c…
K-mouflage at high : extending the reach of
Ashim Sen Gupta, Bartolomeo Fiorini, Tessa Baker
The code is an efficient dark matter simulation suite that flexibly handles the Horndeski family of modified gravity models. In this work we extend the scope of…
Matter Power Spectra in Modified Gravity: A Comparative Study of Approximations and -Body Simulations
Benjamin Bose, Ashim Sen Gupta, Bartolomeo Fiorini +9
Testing gravity and the concordance model of cosmology, CDM, at large scales is a key goal of this decade's largest galaxy surveys. Here we present a comparative study of dark m…