10 citations · 24 across the 5 of their papers we have counts for
5 papers · 1 filter
Rotating near-horizon extreme geometries in quadratic gravity
Breno L. Giacchini, Ivan Kolář
Rotating near-horizon extreme solutions of quadratic gravity are analyzed combining power series expansions and numerical calculations. Restricting to geometries with symmetries of…
Conical singularity in spacetimes with NUT is observer-dependent
Ivan KoláÅ, Pavel KrtouÅ¡, Maciej Ossowski
We discuss the issue of defining and measuring conical deficits (conicity) in spacetimes with the torsion singularity such as the Misner string in Taub--NUT spacetime. We propose a…
Carroll black holes in (A)dS and their higher-derivative modifications
Poula Tadros, Ivan KoláÅ
We define the Carrollian black holes corresponding to the limit of Schwarzschild-(A)dS spacetime and its higher-derivative counterpart known as Schwarzschild-Bach-(A)dS spacetime,…
Uniqueness of Galilean and Carrollian limits of gravitational theories and application to higher derivative gravity
Poula Tadros, Ivan KoláÅ
We show that the seemingly different methods used to derive non-Lorentzian (Galilean and Carrollian) gravitational theories from Lorentzian ones are equivalent. Specifically, the p…
Carrollian limit of quadratic gravity
Poula Tadros, Ivan KoláÅ
We study the Carrollian limit of the (general) quadratic gravity in four dimensions. We find that in order for the Carrollian theory to be a modification of the Carrollian limit of…