4 papers · 1 filter
Properties of black holes in non-linear electrodynamics
Lewis Croney, Ruth Gregory, Ansh Gupta +1
We investigate the properties of charged black hole geometries in nonlinear electrodynamics. We focus on the recently reported analytic charged black hole solutions to illustrate t…
Thermodynamics of dyonic black holes in non-linear electrodynamics
Lewis Croney, Ruth Gregory, Carlos J. RamÃrez-Valdez
We investigate dyonic black holes in a weak field expansion of non-linear electrodynamics. The breadth of parameter space permits a rich thermodynamic structure, additional turning…
Ultra slow-roll with a black hole
Lewis Croney, Ruth Gregory, Sam Patrick
We investigate ultra slow-roll inflation with a seed black hole in a de Sitter background. By numerically tracking transitions from slow-roll to ultra slow-roll inflation, we find…
Testing Higher Derivative Gravity Through Tunnelling
Ruth Gregory, Shi-Qian Hu
Higher derivative terms in the gravitational action are natural from the perspective of quantum gravity, but are perceived as leading to a lack of well-posedness. The Gauss Bonnet…