12 citations · 37 across the 9 of their papers we have counts for
13 papers
A perturbative geometric approach for photon spheres, massive particle surfaces and black hole shadows with mass variations
Oscar Lasso Andino, Fernando G. Veloz
The spacetime behavior at very extreme conditions, such as the regions near a black hole, can be very difficult to modelize. In this work we introduce a new geometric method that a…
Photon spheres and bulk probes in /: the quantum BTZ black hole
Oscar Lasso Andino, Axel León-Arteaga, Guillermo Ramírez-Ulloa
The entanglement entropy in dimensional conformal field theories can be calculated using the area of dimensional minimal surfaces in . Therefore, the existence…
Entanglement entropy and conformal bounds for CFTs
Pablo Bueno, Adam Fernández García, Francesco Gentile +2
The entanglement entropy of spacetime regions in odd-dimensional conformal field theories (CFTs) contains a universal constant term, . This quantity c…
Light rings, timelike circular orbits and curvature of traversable wormholes
Boris Bermúdez-Cárdenas, Oscar Lasso Andino
We study the existence of light rings (LR's) and timelike circular orbits (TCO's) in spherically symmetric, asymptotically flat wormhole geometries. We use a purely geometric appro…
On regular charged black holes in three dimensions
Pablo Bueno, Oscar Lasso Andino, Javier Moreno +1
As argued in arXiv:2104.10172, introducing a non-minimally coupled scalar field, three-dimensional Einstein gravity can be extended by infinite families of theories which admit sim…
Massive particle surfaces and black hole shadows from intrinsic curvature
Boris Bermúdez-Cárdenas, Oscar Lasso Andino
In a recent article PRD 111, 064001 (2025) a new geometric a approach for studying massive particle surfaces was proposed. Using the Gaussian and geodesic curvatures of a two dimen…