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φenics: Vainshtein screening with the finite element method (2021)
Journal Article
Braden, J., Burrage, C., Elder, B., & Saadeh, D. (2021). φenics: Vainshtein screening with the finite element method. Journal of Cosmology and Astroparticle Physics, 2021(03), Article 010. https://doi.org/10.1088/1475-7516/2021/03/010

Within the landscape of modified theories of gravity, progress in understanding the behaviour of, and developing tests for, screening mechanisms has been hindered by the complexity of the field equations involved, which are nonlinear in nature and ch... Read More about φenics: Vainshtein screening with the finite element method.

Massive Galileons and Vainshtein screening (2021)
Journal Article
Burrage, C., Coltman, B., Padilla, A., Saadeh, D., & Wilson, T. (2021). Massive Galileons and Vainshtein screening. Journal of Cosmology and Astroparticle Physics, 2021(02), Article 050. https://doi.org/10.1088/1475-7516/2021/02/050

The Vainshtein screening mechanism relies on nonlinear interaction terms becoming dominant close to a compact source. However, theories displaying this mechanism are generally understood to be low-energy theories: it is unclear that operators emergin... Read More about Massive Galileons and Vainshtein screening.