46 citations · 151 across the 11 of their papers we have counts for
12 papers
Junction conditions in bi-scalar Poincaré Gauge gravity
Adrián Casado-Turrión, Álvaro de la Cruz-Dombriz, Alejandro Jiménez-Cano +1
In this work, we study the junction conditions of the ghost-free subclass of quadratic Poincaré Gauge gravity, which propagates one scalar and one pseudo-scalar. For this purpose,…
Instabilities in field theories: Lecture notes with a view into modified gravity
Adrià Delhom, Alejandro Jiménez-Cano, Francisco José Maldonado Torralba
Modified theories of gravity usually present new degrees of freedom, as well as higher order derivatives, wrong signs in certain terms and complicated couplings already present in…
Dark matter candidate from torsion
Álvaro de la Cruz Dombriz, Francisco José Maldonado Torralba, David F. Mota
The stable pseudo-scalar degree of freedom of the quadratic Poincaré Gauge theory of gravity is shown to be a suitable dark matter candidate. We find the parameter space of the the…
New non-singular cosmological solution of non-local gravity
Ivan Kolář, Francisco José Maldonado Torralba, Anupam Mazumdar
We present a new bouncing cosmological solution of the non-local theory known as infinite derivative gravity, which goes beyond the recursive ansatz, . The n…
New effective theories of gravitation and their phenomenological consequences
Francisco José Maldonado Torralba
This thesis focuses on modifications on Einstein's theory of General Relativity, which could explain the current problems in gravitation and cosmology. More specifically, modificat…
Junction conditions in infinite derivative gravity
Ivan Kolář, Francisco José Maldonado Torralba, Anupam Mazumdar
The junction conditions for the infinite derivative gravity theory are derived under the assumption that the conditions can be imposed by avoiding the `ill-define…
Ghost-free higher-order theories of gravity with torsion
Álvaro de la Cruz-Dombriz, Francisco José Maldonado Torralba, Anupam Mazumdar
In this manuscript we will present the theoretical framework of the recently proposed infinite derivative theory of gravity with a non-symmetric connection. We will explicitly deri…
Revisiting the Stability of Quadratic Poincaré Gauge Gravity
Jose Beltrán Jiménez, Francisco José Maldonado Torralba
Poincaré gauge theories provide an approach to gravity based on the gauging of the Poincaré group, whose homogeneous part generates curvature while the translational sector gives r…
Non-singular and ghost-free infinite derivative gravity with torsion
Álvaro de la Cruz-Dombriz, Francisco José Maldonado Torralba, Anupam Mazumdar
We present the most general quadratic curvature action with torsion including infinite covariant derivatives and study its implications around the Minkowski background via the Pala…
Non-geodesic incompleteness in Poincaré gauge gravity
J. A. R. Cembranos, J. Gigante Valcarcel, F. J. Maldonado Torralba
In this work we review the study of singularities in Poincaré gauge theories of gravity. Since one of the most recent studies uses the appearance of black hole regions of arbitrary…
Birkhoff's theorem for stable torsion theories
Álvaro de la Cruz-Dombriz, Francisco J. Maldonado Torralba
We present a novel approach to establish the Birkhoff's theorem validity in the so-called quadratic Poincaré Gauge theories of gravity. By obtaining the field equations via the Pal…
Fermion dynamics in torsion theories
J. A. R. Cembranos, J. Gigante Valcarcel, F. J. Maldonado Torralba
In this work we have studied the non-geodesical behaviour of particles with spin 1/2 in Poincaré gauge theories of gravity, via the WKB method and the Mathisson-Papapetrou equation…