13 citations · 28 across the 6 of their papers we have counts for
6 papers
Starting inflation in asymptotically flat spacetimes
Sam E. Brady, Thomas W. Baumgarte, Katy Clough
A key question in early universe cosmology is whether inflation can be successfully seeded by a generic, localised fluctuation in the inflaton field that probes the inflationary pa…
Inflaton Dynamics in Higher-Derivative Scalar-Tensor Theories of Gravity
Sam E. Brady, Katy Clough, Pau Figueras +1
During inflation, higher derivative terms in the gravitational action may play a significant role. Building on new stable formulations of four-derivative scalar-tensor theories, we…
GRTresna: An open-source code to solve the initial data constraints in numerical relativity
Josu C. Aurrekoetxea, Sam E. Brady, Llibert Aresté-Saló +11
GRTresna is a multigrid solver designed to solve the constraint equations for the initial data required in numerical relativity simulations. In particular, it is focussed on scenar…
GRFolres: A code for modified gravity simulations in strong gravity
Llibert Aresté Saló, Sam E. Brady, Katy Clough +6
GRFolres is an open-source code for performing simulations in modified theories of gravity, based on the publicly available 3+1D numerical relativity code GRChombo. Note: Submitted…
GRDzhadzha: A code for evolving relativistic matter on analytic metric backgrounds
Josu C. Aurrekoetxea, Jamie Bamber, Sam E. Brady +5
GRDzhadzha is an open-source code for relativistic simulations of matter fields on curved spacetimes that admit an analytic description (e.g. stationary black holes). It is based o…
Solving the initial conditions problem for modified gravity theories
Sam E. Brady, Llibert Aresté Saló, Katy Clough +2
Modified gravity theories such as Einstein scalar Gauss Bonnet (EsGB) contain higher derivative terms in the spacetime curvature in their action, which results in modifications to…