65 citations · 395 across the 18 of their papers we have counts for
19 papers
Torsional black holes and wormholes in Einstein-Cartan-Maxwell gravity with a conformal scalar field
Luis Avilés, Omar Valdivia, Rodolfo Véliz +1
We formulate a one-parameter extension of Weyl transformations in first-order gravity and show that it defines a conformally coupled scalar sector with dynamical torsion. The const…
AdS Carroll Structures from Poincaré Isomorphism: Asymptotic Symmetry Analysis
Luis Avilés, Joaquim Gomis, Diego Hidalgo +1
Starting from the isomorphism between the AdS Carroll and Poincaré algebras, we map the three-dimensional asymptotically flat solutions of Poincaré gravity into an AdS Carroll spac…
Asymptotically AdS black hole with a conformally-coupled scalar field in the first-order formalism of gravity
L. Avilés, C. Corral, F. Izaurieta +2
We present a novel asymptotically anti-de Sitter black hole solution with conformally-coupled scalar fields in the first-order formalism of gravity in four dimensions. To do so, we…
Thermodynamics of the three-dimensional black hole with torsion
Luis Avilés, Diego Hidalgo, Omar Valdivia
The stationary black hole solution of a Chern-Simons model based on the semi-simple extension of the Poincaré gauge group is studied. The solution resembles the metric properties o…
Mimetic Einstein-Cartan-Kibble-Sciama (ECKS) gravity
F. Izaurieta, P. Medina, N. Merino +2
In this paper, we formulate the Mimetic theory of gravity in first-order formalism for differential forms, i.e., the mimetic version of Einstein-Cartan-Kibble-Sciama (ECKS) gravity…
The Spin Tensor of Dark Matter and the Hubble Parameter Tension
Fernando Izaurieta, Samuel Lepe, Omar Valdivia
Allowing for a nonvanishing spin tensor for cold dark matter () has the consequence of giving rise to an effective dynamics with a small negative…
Luminal Propagation of Gravitational Waves in Scalar-tensor Theories: The Case for Torsion
José Barrientos, Fabrizio Cordonier-Tello, Cristóbal Corral +4
Scalar-tensor gravity theories with a nonminimal Gauss-Bonnet coupling typically lead to an anomalous propagation speed for gravitational waves, and have therefore been tightly con…
Wave Operators, Torsion, and Weitzenböck Identities
José Barrientos, Fernando Izaurieta, Eduardo Rodríguez +1
We offer a mathematical toolkit for the study of waves propagating on a background manifold with nonvanishing torsion. Examples include electromagnetic and gravitational waves on a…
Linear and Second-order Geometry Perturbations on Spacetimes with Torsion
Fernando Izaurieta, Eduardo Rodríguez, Omar Valdivia
In order to study gravitational waves in any realistic astrophysical scenario, one must consider geometry perturbations up to second order. Here, we present a general technique for…
Semi-simple enlargement of the algebra from a Chern-Simons theory
Patrick Concha, Nelson Merino, Evelyn Rodríguez +2
In this work we present a BMS-like ansatz for a Chern-Simons theory based on the semi-simple enlargement of the Poincaré symmetry, also known as AdS-Lorentz algebra. We start by sh…
Asymptotic symmetries of three-dimensional Chern-Simons gravity for the Maxwell algebra
Patrick Concha, Nelson Merino, Olivera Miskovic +3
We study a three-dimensional Chern-Simons gravity theory based on the Maxwell algebra. We find that the boundary dynamics is described by an enlargement and deformation of the $\ma…
Nonminimal couplings, gravitational waves, and torsion in Horndeski's theory
José Barrientos, Fabrizio Cordonier-Tello, Fernando Izaurieta +4
The Horndeski Lagrangian brings together all possible interactions between gravity and a scalar field that yield second-order field equations in four-dimensional spacetime. As orig…
Transgression forms as source for topological gravity and Chern-Simons-Higgs theories
Omar Valdivia
Two main gauge invariant off-shell models are studied in this Thesis. I) Poincare-invariant topological gravity in even dimensions is formulated as a transgression field theory who…
Covariant Quiver Gauge Theories
Richard J. Szabo, Omar Valdivia
We consider dimensional reduction of gauge theories with arbitrary gauge group in a formalism based on equivariant principal bundles. For the classical gauge groups we clarify the…
Minimal AdS-Lorentz supergravity in three-dimensions
O. Fierro, F. Izaurieta, P. Salgado +1
The AdS-Lorentz superalgebra is studied and its relationship to semigroup expansion developed. Using this mathematical tool, the invariant tensors and Casimir opera…
Topological gravity and transgression holography
Patricio Salgado, Richard J. Szabo, Omar Valdivia
We show that Poincare-invariant topological gravity in even dimensions can be formulated as a transgression field theory in one higher dimension whose gauge connections are associa…
Generating infinite-dimensional algebras from loop algebras by expanding Maurer Cartan forms
R. Caroca, N. Merino, P. Salgado +1
It is shown that the expansion methods developed in refs. arXiv:hep-th/0212347 and arXiv:hep-th/0401033v2 can be generalized so that they permit to study the expansion of algebras…
A generalized action for -dimensional Chern--Simons gravity
José Díaz, Octavio Fierro, Fernando Izaurieta +4
We show that the so-called semi-simple extended Poincaré (SSEP) algebra in dimensions can be obtained from the anti-de~Sitter algebra by me…
Topological gravity and Wess-Zumino-Witten term
Patricio Salgado, Patricio Salgado-Rebolledo, Omar Valdivia
It is shown that the action for topological gravity in even dimensions is, except by a multiplicative constant, a gauged Wess-Zumino-Witten Term.