8 papers
Regular Black Holes in Nonlocal Quasitopological Gravity
Pablo Bueno, Pablo A. Cano, Robie A. Hennigar +1
We present infinite-derivative completions of Quasitopological gravities that are ghost-free, avoid strong coupling instabilities and admit exact, spherically symmetric vacuum regu…
Buchdahl limits in theories with regular black holes
Pablo Bueno, Robie A. Hennigar, Ãngel J. Murcia +1
We study generalizations of Buchdahl's compactness limits for perfect-fluid star solutions of -dimensional Einstein gravity coupled to higher-curvature corrections. We focus on…
Regular Geometries from Singular Matter in Quasi-Topological Gravity
Pablo Bueno, Robie A. Hennigar, Ãngel J. Murcia +1
Vacuum quasi-topological gravity with infinitely many terms in the action satisfies Markov's limiting curvature hypothesis: the spherically symmetric solutions are regular and all…
Birkhoff implies Quasi-topological
Pablo Bueno, Robie A. Hennigar, Ãngel J. Murcia
Quasi-topological gravities (QTGs) are higher-curvature extensions of Einstein gravity in spacetime dimensions. Throughout the years, different notions of QTGs constructe…
Regular black hole formation in four-dimensional non-polynomial gravities
Pablo Bueno, Pablo A. Cano, Robie A. Hennigar +1
We construct four-dimensional gravity theories that resolve the Schwarzschild singularity and enable dynamical studies of nonsingular gravitational collapse. The construction emplo…
Regular black holes from Oppenheimer-Snyder collapse
Pablo Bueno, Pablo A. Cano, Robie A. Hennigar +2
It has been recently shown that regular black holes arise as the unique spherically symmetric solutions of broad families of generalizations of Einstein gravity involving infinite…