Einstein-scalar-Gauss-Bonnet 1higher-derivative terms 1inflation 1scalar-tensor gravity 1weak coupling 1
From the 1 of 3 linked papers with an AI index.
3 papers
gr-qc2026
Inflaton Dynamics in Higher-Derivative Scalar-Tensor Theories of Gravity
Sam E. Brady, Katy Clough, Pau Figueras +1
The paper investigates how higher‑derivative corrections in scalar‑tensor gravity affect inflation when the inflaton is the extra scalar degree of freedom, focusing on regimes wher…
gr-qc2026
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…
gr-qc2026
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…