4 papers
Perturbative vacuum constraints in higher-curvature gravity: Schwarzschild deformations and strong-field observables
Gustavo Melgarejo, Daniel Molano, Jonathan Ramírez
Higher-curvature terms modify the action but do not necessarily generate new vacuum geometries on the branch perturbatively connected to GR. We develop a first-order framework for…
Reconstruction Between Generalized Hybrid Metric--Palatini Gravity and Theories
Jonathan RamÃrez
We develop a local reconstruction framework between theories with linear dependence on and generalized hybrid metric--Palatini gravity. The construction is formula…
On the Metric Propagator and Affine Modes of Extended Hybrid Metric--Palatini Gravity with Ricci--Squared Invariants
Jonathan RamÃrez, Jonathan Ramírez, Gustavo Melgarejo
We investigate an extended hybrid metric--Palatini theory defined by an arbitrary function , where and are the metric and…
A connection between Gravitational Scalar-Tensor theories and Generalized Hybrid theories
Jonathan RamÃrez, Santiago Esteban Perez Bergliaffa
We establish a correspondence between higher-derivative gravitational scalar-tensor theories of the form and generalized hybrid metric-Palatini models $…