58 citations · 295 across the 14 of their papers we have counts for
14 papers
Hietarinta Chern-Simons supergravity and its asymptotic structure
Patrick Concha, Octavio Fierro, Evelyn Rodríguez
In this paper we present the Hietarinta Chern-Simons supergravity theory in three space-time dimensions which extends the simplest Poincaré supergravity theory. After approaching t…
Scalar correlators and normal modes in holographic neutron stars
Tobías Canavesi, Octavio Fierro, Nicolás Grandi +1
We study a scalar field in the background of a holographic neutron star at finite temperature and analyze its asymptotic behavior to compute the two-point correlator at the boundar…
Slowly rotating black holes in Quasi-topological gravity
Octavio Fierro, Nicolas Mora, Julio Oliva
While cubic Quasi-topological gravity is unique, there is a family of quartic Quasi-topological gravities in five dimensions. These theories are defined by leading to a first order…
On the supersymmetric extension of asymptotic symmetries in three spacetime dimensions
Ricardo Caroca, Patrick Concha, Octavio Fierro +1
In this work we obtain known and new supersymmetric extensions of diverse asymptotic symmetries defined in three spacetime dimensions by considering the semigroup expansion method.…
Scalar field quasinormal modes on asymptotically locally flat rotating black holes in three dimensions
Andres Anabalon, Octavio Fierro, Jose Figueroa +1
The pure quadratic term of New Massive Gravity in three dimensions admits asymptotically locally flat, rotating black holes. These black holes are characterized by their mass and a…
Three-dimensional Poincaré supergravity and -extended supersymmetric BMS algebra
Ricardo Caroca, Patrick Concha, Octavio Fierro +1
A new approach for obtaining the three-dimensional Chern-Simons supergravity for the Poincaré algebra is presented. The -extended Poincaré supergravity is obtained by…
Scalar probes on wormholes in Lovelock theories with unique vacuum
Octavio Fierro, Daniela Narbona, Julio Oliva +2
In this paper we present a new family of wormhole geometries in Lovelock theories with a unique vacuum, and study their stability under scalar field perturbations. As the solutions…
Generalized Chern-Simons higher-spin gravity theories in three dimensions
Ricardo Caroca, Patrick Concha, Octavio Fierro +2
The coupling of spin-3 gauge fields to three-dimensional Maxwell and -Lorentz gravity theories is presented. After showing how the usual spin-3 extensions of the and the…
Superradiance of charged black holes in Einstein-Gauss-Bonnet Gravity
Octavio Fierro, Nicolas Grandi, Julio Oliva
In this paper we show that electrically charged black holes in Einstein-Gauss-Bonnet gravity suffer from a superradiant instability. It is triggered by a charged scalar field that…
Black holes in quasi-topological gravity and conformal couplings
Mariano Chernicoff, Octavio Fierro, Gaston Giribet +1
Lovelock theory of gravity provides a tractable model to investigate the effects of higher-curvature terms in the context of AdS/CFT. Yielding second order, ghost-free field equati…
Inönü-Wigner Contraction and Supergravity
P. K. Concha, O. Fierro, E. K. Rodríguez
We present a generalization of the standard Inönü-Wigner contraction by rescaling not only the generators of a Lie superalgebra but also the arbitrary constants appearing in the co…
Chern-Simons Supergravity in D=3 and Maxwell superalgebra
P. K. Concha, O. Fierro, E. K. Rodríguez +1
We present the construction of the Chern-Simons supergravity action without cosmological constant from the minimal Maxwell superalgebra . This superalgebra…
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…
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…