5 papers
The Gödel Universe as a Superconductor
Daniel Flores-Alfonso, Cesar S. Lopez-Monsalvo, Alberto Rubio-Ponce
Material science and engineering have benefited from the use of geometric and topological tools. A material medium can mimic effective gravitational fields while spacetime metrics…
Planar AdS multi-NUT spacetimes and Kaluza-Klein multi-monopoles
Cristóbal Corral, Cristián Erices, Daniel Flores-Alfonso +1
In higher-dimensional Einstein-AdS gravity, it is well known that planar and static anti-de Sitter black holes can be endowed with multiple rotation parameters via a large-gauge tr…
Ultrarelativistic limit of the Kerr theorem
Eloy Ayón-Beato, Daniel Flores-Alfonso, Mokhtar Hassaine
The original Kerr theorem provides the foundation for Kerr-Schild transformations by classifying all shear-free and geodesic null congruences in flat spacetime; the key ingredient…
Inhomogeneous metrics on complex bundles in Lovelock gravity
Cristóbal Corral, Borja Diez, Daniel Flores-Alfonso +2
We consider Lovelock gravity in arbitrary, even dimensions. We find a large class of new gravitational instantons by considering extended nontrivial circle bundles over Kähler man…
Non-Abelian black holes in conformal gravity
Daniel Flores-Alfonso
The first black hole solutions of the SU(N) Bach-Yang-Mills equations are presented. Static generalizations breaking spherical symmetry are also constructed. These constitute the f…